Automotive seat adjustable headrest

Abstract

The application provides an adjustable soft headrest of a car seat, which is arranged on the car seat and comprises at least one soft supporting body, the soft supporting body comprises an elastic coating layer, the elastic coating layer is provided with a gas passage hole, and a porous elastic supporting body is arranged in the elastic coating layer, the porous elastic supporting body can accommodate gas and has elasticity; a gas path assembly, the gas path assembly comprises a gas passage pipe which is communicated with the gas passage hole at one end, and the other end of the gas passage pipe is communicated with a gas source, the gas source is used for at least inflating the elastic coating layer; and a control assembly, the control assembly comprises a control module and a valve body assembly, and the control module is used for controlling the working state of the gas source and the valve body assembly. The adjustable soft headrest of the car seat can adapt to the diversified needs of various passengers and various driving states, and improve the comfort experience of the passengers.

Description

Technical Field

[0001] This invention generally relates to the field of seat headrest technology, and more specifically to an adjustable soft headrest for automobile seats. Background Technology

[0002] In the prior art, car seats with soft headrests can effectively improve the comfort of the head and neck of passengers, significantly reduce physical discomfort caused by long-term driving or riding, and effectively relieve fatigue caused by long-term driving and riding.

[0003] However, existing soft headrests can only passively deform by the pressure applied by the occupant's head and neck. Because the air pressure inside the soft headrest is difficult to deform, it cannot be adaptively adjusted according to the needs of the occupant at different times and in different states, and cannot meet the occupant's growing demand for driving and riding comfort. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an adjustable soft headrest for automobile seats.

[0005] This invention provides an adjustable soft headrest for a car seat, disposed on a car seat, comprising: At least one soft support, the soft support comprising: An elastic covering layer is provided, which is deformable and has an internal receiving space. A vent hole is provided on the elastic covering layer and the vent hole is connected to the receiving space. A porous elastic support is disposed within the accommodating space, and the porous elastic support can accommodate gas and is elastic.

[0006] The technical solution provided by the embodiments of the present invention further includes a gas path assembly, the gas path assembly comprising: A venting pipe, wherein the venting pipe is connected to the receiving space through the vent hole; An air source, which is connected to the containing space through the ventilation pipe, is used at least to fill the containing space with air; A control component, comprising a control module and a valve body assembly, wherein the control module is used to control the operating states of the gas source and the valve body assembly.

[0007] According to the technical solution provided in the embodiments of the present invention, the valve body assembly includes a control valve body, the control valve body having a pipeline connection port, an air inlet and an air vent, the pipeline connection port being connected to the ventilation pipeline, the air inlet being connected to the air source, and the air vent being connected to the environment; the air source is connected to the ventilation pipeline through the valve body assembly; The soft support has an inflated state, a pressure-holding state, and a deflated state; When in the inflation state, the air source is turned on, the pipeline connection port is connected to the air inlet, and the high-pressure gas generated by the air source enters the accommodating space through the valve body assembly and the air pipe. When in the pressure-holding state, the pipeline connection port is blocked from both the air inlet and the air outlet; When in the vented state, the pipeline connection port is connected to the vent port, and the gas in the containment space is discharged into the environment through the vent pipeline and the valve body assembly.

[0008] According to the technical solution provided by the embodiments of the present invention, the gas source has a gas supply port and a gas intake port, the gas supply port is connected to the gas inlet, and the gas intake port is connected to the accommodating space; the gas source includes a gas supply source and a gas extraction source, the gas supply port is formed at the gas outlet of the gas supply source, the gas intake port is formed at the gas inlet of the gas extraction source, the gas supply source is used to fill the accommodating space with gas, and the gas extraction source is used to extract the gas from the accommodating space; The soft support also has a vacuum state. When in the vacuum state, the gas in the containment space is extracted from the containment space through the vacuum source.

[0009] According to the technical solution provided by the embodiments of the present invention, the gas supply source and the gas extraction source are integrated into one unit.

[0010] According to the technical solution provided in the embodiments of the present invention, the valve body assembly further includes an air supply switching valve and an air intake switching valve. The air supply switching valve is disposed in the air path between the air supply port and the air inlet, and is used to control the air supply port to be connected to the air inlet or to the environment. The air intake switching valve is disposed in the air path between the air intake port and the accommodating space, and is used to control the air intake port to be connected to the accommodating space or to the environment.

[0011] According to the technical solution provided by the embodiments of the present invention, a plurality of soft supports are included, and the air pressure in the accommodating space is independently controlled among the various soft supports.

[0012] According to the technical solution provided by the embodiments of the present invention, it further includes a pressure sensor, which is electrically connected to the control module and is used to detect the pressure in the accommodating space.

[0013] According to the technical solution provided by the embodiments of the present invention, the control module is associated with at least one of the vehicle seat occupancy system, the occupant level determination system and the vehicle seat memory function, and performs signal transmission.

[0014] According to the technical solution provided in the embodiments of the present invention, a constraint layer is provided between the elastic covering layer and the porous elastic support, and the constraint layer is made of a breathable material.

[0015] According to the technical solution provided in the embodiments of the present invention, a noise-reducing and anti-clogging component is provided at the vent.

[0016] The beneficial effects of this invention are as follows: This invention specifically discloses an adjustable soft headrest for a car seat, which is installed on the car seat and includes at least one soft support body. The soft support body includes: an elastic covering layer, which is deformable and has an internal accommodating space with ventilation holes that communicate with the accommodating space; and a porous elastic support body disposed within the accommodating space, which is capable of accommodating gas and is elastic.

[0017] By covering the outside of the porous elastic support with an elastic covering layer containing vents, when an occupant sits on the seat and their head and neck apply pressure to the soft support, the gas in the containment space is discharged to the outside through the vents, allowing the soft support to deform better. When the occupant's head and neck move away from the soft support, the soft support draws in gas from the outside through the vents due to the supporting effect of the porous elastic support, restoring the shape of the soft support. In this way, it can adapt to the diverse needs of various occupants and various driving and riding conditions, improving the comfort experience of the occupants. Attached Figure Description

[0018] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A schematic diagram showing an adjustable soft headrest for a car seat being installed on the car seat via a connector. Figure 2 A schematic diagram showing the integration of an adjustable soft headrest and headrest cover for a car seat; Figure 3 This is a schematic diagram of the structure of an adjustable soft headrest for a car seat in one embodiment; Figure 4 for Figure 3 Schematic diagram of the air circuit of the structure; Figure 5 This is a schematic diagram of the adjustable soft headrest of a car seat in another embodiment; Figure 6 for Figure 5 Schematic diagram of the air circuit of the structure; Figure 7 This is a partial structural diagram of an adjustable soft headrest installed inside a car seat. Figure 8 To and Figure 7 Structural diagram of the structural fit; Figure 9This is a schematic diagram of an airflow path with multiple soft supports. Figure 10 This is a schematic diagram of the air circuit equipped with a pressure sensor; Figure 11 A schematic diagram of a soft support structure with a constraint layer; The components include: 1. Soft support; 2. Elastic covering layer; 3. Ventilation hole; 4. Porous elastic support; 5. Ventilation pipeline; 6. Air supply port; 7. Air intake port; 8. Air supply switching valve; 9. Air intake switching valve; 10. Air pressure sensor; 11. Constraint layer; 12. Noise reduction and anti-clogging component. Detailed Implementation

[0019] 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, only the parts relevant to the invention are shown in the accompanying drawings.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0021] Please refer to Figures 1-3 This invention provides an adjustable soft headrest for a car seat, which is disposed on the car seat and includes: At least one soft support 1, the soft support 1 comprising: An elastic covering layer 2 is deformable, and an internal accommodating space is formed inside the elastic covering layer 2. A vent 3 is provided on the elastic covering layer 2, and the vent 3 is connected to the accommodating space. A porous elastic support 4 is disposed within the accommodating space. The porous elastic support 4 can accommodate gas and is elastic.

[0022] Specifically, such as Figures 1-2 As shown, the car seat has a headrest body. The adjustable soft headrest can be installed and fixed to the car seat through separately set connectors, such as straps, elastic bands, hooks, etc. It can also be installed on the car seat by integrating with the headrest body cover. When the adjustable soft headrest is located inside the headrest body cover, the soft support 1 is connected to the inside of the headrest body cover to fix the relative position of the soft support 1 and the headrest body cover.

[0023] And, as Figure 3As shown, the adjustable soft headrest includes at least one soft support body 1. The soft support body 1 includes an elastic covering layer 2. The elastic covering layer 2 is deformable and made of a deformable solid material, such as PU or TPU, which can be extruded into a film. An accommodating space is formed inside the elastic covering layer 2. In this embodiment, the elastic covering layer 2 is a TPU film. The edges of two TPU films are welded together to form the accommodating space, and a vent 3 is provided on it to allow the accommodating space to exchange gases with the outside.

[0024] Secondly, the porous elastic support 4 is placed in the containment space. The porous elastic support 4 can be a material that has both space to contain gas and elasticity, such as memory foam, open-pore latex, or composite fiber, so that the height of the soft support 1 and / or the hardness felt by the human body can change.

[0025] This arrangement allows for better deformation of the soft support structure when the occupant is seated and their head and neck are pressed against it. When the occupant's head and neck are away from the soft support structure, the porous elastic structure draws in air through the vents, restoring the soft support structure's shape. This design adapts to the diverse needs of various occupants and different driving / riding conditions, enhancing the occupant's comfort experience.

[0026] Furthermore, it also includes a gas path assembly, the gas path assembly comprising: Ventilation pipe 5, which is connected to the accommodating space through the ventilation hole 3; An air source, which is connected to the containing space through the ventilation pipe 5, is used at least to fill the containing space with air; A control component, comprising a control module and a valve body assembly, wherein the control module is used to control the operating states of the gas source and the valve body assembly.

[0027] Specifically, such as Figure 3 As shown, the adjustable soft headrest also includes an air path assembly, which includes an air duct 5, an air source, and a control assembly. The control assembly includes a control module and a valve body assembly. The air source is connected to the accommodating space through the air duct 5. The valve body assembly can be used to control the opening and closing of the air path between the air source and the accommodating space. The control module is used to control the working status of the air source and the valve body assembly. By setting up the air path assembly, active control of the amount of gas inside the accommodating space can be achieved, enhancing the active adjustability of the adjustable soft headrest and making the firmness and lift height of the adjustable soft headrest more in line with the preferences of different occupants, thereby improving comfort.

[0028] Among them, such as Figure 7 , Figure 8As shown, the ventilation line 5 can be equipped with a quick-connect structure, which makes it convenient and quick to connect the air line when the adjustable soft headrest is installed on the car seat.

[0029] Furthermore, the valve body assembly includes a control valve body, which has a pipe connection port, an air inlet, and an air vent. The pipe connection port is connected to the ventilation pipe 5, the air inlet is connected to the air source, and the air vent is connected to the environment. The air source is connected to the ventilation pipe 5 through the valve body assembly. The soft support 1 has an inflated state, a pressure-holding state, and a deflated state; When it is in the inflation state, the air source is turned on, the pipeline connection port is connected to the air inlet, and the high-pressure gas generated by the air source enters the containment space through the valve body assembly and the air pipe 5. When under pressure, the pipe connection is blocked from both the air inlet and the air outlet; When in a venting state, the pipe connection port is connected to the vent port, and the gas in the containment space is discharged into the environment through the vent pipe 5 and the valve body assembly.

[0030] Specifically, such as Figure 4 As shown, the control valve body can be a solenoid valve or a shape memory alloy valve. In order to achieve the pressure holding state, the control valve body can be two two-position two-way solenoid valves connected in parallel. The two two-position two-way solenoid valves are respectively connected to the air supply line 5. Alternatively, it can be a two-position three-way solenoid valve connected in series with a two-position two-way solenoid valve, or a check valve connected in series with a two-position two-way solenoid valve. These are existing technologies and will not be described in detail here.

[0031] When inflated, gas enters the soft support 1, increasing its height or pressure. When pressurized, the amount of gas remains constant, providing stable support for the occupant. When deflated, gas escapes from the soft support 1 into the environment, decreasing its height or pressure. Deflating occurs in two scenarios: either the pressure inside the soft support 1 is higher than atmospheric pressure, causing the gas to escape to atmospheric equilibrium; or the occupant, seated on the seat, applies pressure to the soft support 1 with their head and neck, forcing the gas to escape. These three operating states allow for diverse adjustments to the soft support 1, meeting the comfort requirements of the occupant.

[0032] Furthermore, the gas source has a gas supply port 6 and a gas intake port 7. The gas supply port 6 is connected to the gas inlet, and the gas intake port 7 is connected to the accommodating space. The gas source includes a gas supply source and a gas extraction source. The gas supply port 6 is formed by the gas outlet of the gas supply source, and the gas intake port 7 is formed by the gas inlet of the gas extraction source. The gas supply source is used to fill the accommodating space with gas, and the gas extraction source is used to extract the gas from the accommodating space. The soft support 1 also has a vacuum state. When in the vacuum state, the gas in the containment space is extracted from the containment space through the vacuum source.

[0033] Specifically, a separate air supply source and an air extraction source can be set up. These sources can be, for example, air pumps. The air outlet of the air supply source pump forms the air supply port 6, and the air inlet of the air extraction source pump forms the air intake port 7. When the air supply source pump is working, the gas is compressed and flows through the valve assembly and ventilation pipe 5 into the containment space. When the air extraction source pump is working, the gas is discharged to the environment through the ventilation pipe 5 and the valve assembly. When the soft support 1 is in the air extraction state, the air pressure in the containment space can be reduced to less than atmospheric pressure, further improving the shape change capability of the soft support 1, resulting in more diverse adjusted shapes. Furthermore, when the gas inside the soft support 1 is extracted to its limit, the soft support 1 is considered to be in a flattened state, suitable for occupants who do not require a soft headrest. The soft headrest can be removed through system control, avoiding the operation of disassembling and assembling the soft headrest, which is convenient and quick.

[0034] Furthermore, the gas supply source and the gas extraction source are integrated into one unit.

[0035] Specifically, such as Figure 5 , Figure 6 As shown, the air supply source and the air extraction source can be an integrated structure, such as a single air pump. The air outlet of the air pump forms the air supply port 6, and the air inlet forms the air intake port 7. This simplifies the system structure, reduces the space occupied by the air source, and makes it easier to arrange in the limited space of a car seat.

[0036] Furthermore, the valve body assembly also includes an air supply switching valve 8 and an air intake switching valve 9. The air supply switching valve 8 is located in the air path between the air supply port 6 and the air inlet, and is used to control the air supply port 6 to connect with the air inlet or to the environment. The air intake switching valve 9 is located in the air path between the air intake port 7 and the accommodating space, and is used to control the air intake port 7 to connect with the accommodating space or to the environment.

[0037] Specifically, such as Figure 9As shown, when the air supply source and the air extraction source are integrated, an air supply switching valve 8 is provided on the air path between the air supply port 6 and the air inlet, and an air extraction switching valve 9 is provided on the air path between the air extraction port 7 and the accommodating space. When the soft support body 1 is in an inflated state, the control module controls the air supply switching valve 8, the control valve body, and the air extraction switching valve 9, so that the air supply port 6 and the air inlet are connected, the air inlet is connected to the pipeline connection port, and the air extraction port 7 is connected to the environment. The gas enters the air source from the environment through the air extraction port 7, is compressed, and then enters the accommodating space from the air supply port 6 through the air inlet, the pipeline connection port, and the ventilation pipeline 5. When the soft support body 1 is in an air extraction state, the control module controls the air supply switching valve 8, the control valve body, and the air extraction switching valve 9, so that the air supply port 6 is connected to the environment, and the air extraction port 7 is connected to the accommodating space. The gas enters the air source from the accommodating space through the ventilation pipeline 5 and the air extraction port 7, and then is discharged to the environment from the air supply port 6.

[0038] Furthermore, the adjustable soft headrest includes multiple soft support bodies 1, and the air pressure in the accommodating space is independently controlled between each soft support body 1.

[0039] Specifically, such as Figure 8 , Figure 10 As shown, each soft support 1 can be arranged in multiple rows, multiple columns or multiple rows and multiple columns, and the height of each area and / or the hardness felt by the human body can be controlled individually, thereby improving the fit of the soft support 1 to the curve of the occupant's head and neck, and making the soft support 1 more enveloping to the occupant's head and neck.

[0040] Each soft support 1 is provided with a corresponding control valve body for independently controlling the inflation state, pressure holding state and deflation state. When there is an air extraction state, an air extraction valve body is also provided in the air path between each accommodating space and the air extraction control valve for independently controlling the air extraction state.

[0041] When in the inflation state, the gas flows through the gas supply control valve to each control valve body. The air inlet and pipeline connection port of the control valve body corresponding to the soft support body 1 that needs to be inflated are connected, so that the corresponding soft support body 1 is inflated. When in the deflation state, the pipeline connection port and deflation port of the control valve body corresponding to the soft support body 1 that needs to be deflated are connected, so that the corresponding soft support body 1 is deflated. When in the degassing state, the corresponding degassing valve body is opened, and the accommodating space is connected to the suction control valve, so that the gas in the accommodating space is extracted by the gas source.

[0042] When the air extraction mode is activated, while other soft support bodies 1 maintain support for the occupant's head and neck, some soft support bodies 1 can be automatically de-aired by program control, so that a heat dissipation space is formed between the adjustable soft headrest and the occupant's head and neck, avoiding stuffiness and sweating in hot weather conditions and improving the occupant's driving and riding comfort.

[0043] Furthermore, the adjustable soft headrest also includes a pressure sensor 10, which is electrically connected to the control module and is used to detect the air pressure in the accommodating space.

[0044] Specifically, such as Figure 10 As shown, the air pressure sensor 10 detects the air pressure inside the containment space, which can be used to protect the soft support 1 and prevent excessive air pressure inside the containment space from damaging the elastic covering layer 2 and causing air leakage.

[0045] In addition, when the soft support 1 is in a pressure-holding state, if the air pressure in the containment space decreases, the control module can control the air source to automatically replenish the containment space. If the air pressure in the containment space decreases, the control module can control the control valve to automatically release the air from the containment space, so as to maintain a constant air pressure in the containment space and keep the support effect for the occupants unchanged.

[0046] In addition, when the vehicle is hit, the pressure exerted by the occupants on the soft airbag 1 rises sharply. When the air pressure sensor 10 detects a rapid increase in the air pressure inside the soft airbag 1, the control module controls the control valve to automatically and quickly deflate the containment space, reducing the hardness of the soft airbag 1 and preventing injury to the occupants.

[0047] Furthermore, the control module is associated with at least one of the vehicle seat occupancy system, occupant level determination system, and vehicle seat memory function for signal transmission.

[0048] Specifically, the control module is associated with the car seat occupancy system. When a passenger occupies a car seat, the control module can automatically open the air vent of the control valve body. If the passenger does not actively adjust the state of the soft support body 1, the height of the soft support body 1 can be adjusted by the pressure applied by the passenger when leaning against it. When no one occupies the car seat, the air vent of the control valve body can be opened to balance the air pressure in the accommodating space with the atmospheric pressure, thus preventing the air pressure in the accommodating space from rising due to the temperature increase caused by the vehicle being exposed to sunlight, which could damage the elastic covering layer 2.

[0049] The control module is associated with the occupant level determination system. When the occupant is determined to be of a certain level, the system can automatically adjust the air pressure inside each soft support 1 and adjust the shape of the soft support 1 to accommodate occupants of different body types based on the system data.

[0050] The control module is associated with the car seat memory function, which remembers the adjustment data of different occupants. The seat will automatically adjust to the remembered data state the next time the occupant sits in the car.

[0051] Furthermore, a constraint layer 11 is provided between the elastic covering layer 2 and the porous elastic support 4, and the constraint layer 11 is made of a breathable material.

[0052] Specifically, such as Figure 11As shown, the constraint layer 11 can be a non-woven fabric. The constraint layer 11 covers the outside of the porous elastic support 4 to prevent the porous elastic support 4 itself or the generated debris from clogging the ventilation holes 3, thus preventing the air pressure regulation function inside the containment space from failing and improving the reliability of the product.

[0053] Furthermore, the three vent holes are equipped with noise-reducing and anti-clogging components 12.

[0054] Specifically, such as Figure 1 As shown, the noise reduction and anti-clogging component 12 has a porous structure, which prevents the porous elastic support 4 itself or the generated debris from clogging the vent hole 3. At the same time, it can reduce the noise generated when the airflow enters and exits the accommodating space and improve the NVH performance of the car seat.

[0055] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. An adjustable soft headrest for a car seat, characterized in that, include: At least one soft support (1), the soft support (1) comprising: An elastic covering layer (2) is deformable. An accommodating space is formed inside the elastic covering layer (2), and a vent hole (3) is provided on it. The vent hole (3) is connected to the accommodating space. A porous elastic support (4) is disposed within the accommodating space. The porous elastic support (4) can accommodate gas and is elastic.

2. The adjustable soft headrest for a car seat according to claim 1, characterized in that, It also includes a gas path assembly, the gas path assembly comprising: Ventilation pipe (5), the ventilation pipe (5) is connected to the accommodating space through the ventilation hole (3); An air source, which is connected to the accommodating space through the ventilation pipe (5), is used at least to fill the accommodating space with air; A control component, comprising a control module and a valve body assembly, wherein the control module is used to control the operating states of the gas source and the valve body assembly.

3. The adjustable soft headrest for a car seat according to claim 2, characterized in that, The valve body assembly includes a control valve body, which has a pipe connection port, an air inlet, and an air vent. The pipe connection port is connected to the ventilation pipe (5), the air inlet is connected to the air source, and the air vent is connected to the environment. The air source is connected to the ventilation pipe (5) through the valve body assembly. The soft support (1) has an inflated state, a pressure-holding state, and a deflated state; When in the inflation state, the air source is turned on, the pipeline connection port is connected to the air inlet, and the high-pressure gas generated by the air source enters the accommodating space through the valve body assembly and the air pipe (5); When in the pressure-holding state, the pipeline connection port is blocked from both the air inlet and the air outlet; When in the venting state, the pipeline connection port is connected to the vent port, and the gas in the containment space is discharged into the environment through the vent pipe (5) and the valve body assembly.

4. The adjustable soft headrest for a car seat according to claim 3, characterized in that, The gas source has a gas supply port (6) and a gas intake port (7). The gas supply port (6) is connected to the gas inlet, and the gas intake port (7) is connected to the accommodating space. The gas source includes a gas supply source and a gas extraction source. The gas supply port (6) is formed by the gas outlet of the gas supply source, and the gas intake port (7) is formed by the gas inlet of the gas extraction source. The gas supply source is used to fill the accommodating space with gas, and the gas extraction source is used to extract the gas from the accommodating space. The soft support (1) also has a vacuum state. When in the vacuum state, the gas in the containment space is extracted from the containment space through the vacuum source.

5. The adjustable soft headrest for a car seat according to claim 4, characterized in that, The gas supply source and the gas extraction source are integrated into one unit.

6. The adjustable soft headrest for a car seat according to claim 5, characterized in that, The valve body assembly further includes an air supply switching valve (8) and an air intake switching valve (9). The air supply switching valve (8) is located on the air path between the air supply port (6) and the air inlet, and is used to control the air supply port (6) to connect with the air inlet or to the environment. The air intake switching valve (9) is located on the air path between the air intake port (7) and the accommodating space, and is used to control the air intake port (7) to connect with the accommodating space or to the environment.

7. The adjustable soft headrest for automobile seats according to any one of claims 1-6, characterized in that, It includes multiple soft support bodies (1), and the air pressure in the containment space is independently controlled by each soft support body (1).

8. The adjustable soft headrest for a car seat according to claim 7, characterized in that, It also includes a pressure sensor (10), which is electrically connected to the control module and is used to detect the pressure in the containment space.

9. The adjustable soft headrest for a car seat according to claim 8, characterized in that, The control module is associated with at least one of the vehicle seat occupancy system, occupant level determination system, and vehicle seat memory function for signal transmission.

10. The adjustable soft headrest for automobile seats according to any one of claims 1-6, characterized in that, A constraint layer (11) is provided between the elastic covering layer (2) and the porous elastic support (4), and the constraint layer (11) is made of a breathable material.

11. The adjustable soft headrest for automobile seats according to any one of claims 1-6, characterized in that, A noise reduction and anti-clogging component (12) is provided at the vent (3).

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