A seat for eliminating the seat step difference in the lying mode of a passenger car

Abstract

The application discloses a seat capable of eliminating the sitting-reclining step difference in the lying mode of a passenger vehicle, and relates to the technical field of seats.The seat comprises a framework, a seat cushion and a backrest, the bottom of the outer side of the backrest is formed with a sitting-reclining part, the framework is internally provided with a mounting plate, a deformation gap is formed between the mounting plate and the sitting-reclining part, the side of the mounting plate close to the sitting-reclining part is provided with a first air bag, and the framework is internally provided with a gas supply assembly.The gas supply assembly controls the first air bag to be inflated and unfolded and to support the sitting-reclining part in a standard sitting posture, so that the sitting-reclining part can effectively conform to the waist curve of a passenger and provide good support to improve comfort.In a lying posture, the gas supply assembly controls the first air bag to deflate and retract, and the deformation gap enables the sitting-reclining part to be deformed and moved in the direction of the mounting plate, so that the height difference between the upper surface of the seat cushion and the top of the sitting-reclining part is reduced, and the lying comfort of the seat capable of eliminating the sitting-reclining step difference in the lying mode of a passenger vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of seat technology, and in particular to a seat that eliminates the difference in seating position when the passenger car is in a reclining mode. Background Technology

[0002] Modern passenger car seats that eliminate the step difference between reclining and seated positions typically consist of a seat cushion, backrest, and an adjustable frame structure. The backrest features a raised support for lumbar support. In a standard sitting position, this support effectively conforms to the passenger's lumbar curve, providing excellent support for enhanced comfort.

[0003] When the seat frame is reclined, driving the backrest to flip back into a flat position, a significant step-like height difference is created between the upper surface of the seat cushion and the top of the backrest. This structural difference prevents the seat from providing a continuous, smooth support surface when reclined. When a passenger lies flat, their lumbar region is located precisely at this difference, not only failing to receive effective support but also experiencing discomfort due to partial unsupported areas or abnormal compression, severely reducing the comfort of lying down for rest. Utility Model Content

[0004] In order to improve the lying comfort of a seat that eliminates the difference between sitting and leaning on a step in the lying-flat mode of a passenger car, this application provides a seat that eliminates the difference between sitting and leaning on a step in the lying-flat mode of a passenger car.

[0005] The technical solution provided in this application for a seat that eliminates the step difference in the reclining mode of a passenger vehicle adopts the following:

[0006] A seat that eliminates the step difference in the reclining mode of a passenger vehicle includes a frame and a seat cushion and a backrest disposed on the frame. The bottom of the outer side of the backrest forms a seat back. The bottom of the frame located on the inner side of the backrest has a mounting plate. A deformation gap is formed between the mounting plate and the seat back. A first airbag is disposed on the side of the mounting plate near the seat back. An air supply component is disposed inside the frame. The air supply component is connected to the first airbag and controls the inflation or deflation of the first airbag.

[0007] By adopting the above technical solution, in the standard sitting posture, the air supply component controls the inflation and deployment of the first airbag, which supports the seat back, allowing it to effectively conform to the passenger's lumbar curve and provide good support to improve comfort. In the lying posture, the air supply component controls the deflation and retraction of the first airbag, and the deformation gap allows the seat back to deform and move towards the mounting plate, reducing the height difference between the upper surface of the seat cushion and the top of the seat back, thereby improving the lying comfort of the seat that eliminates the step difference between the seat back and the seat back in the lying mode of passenger vehicles.

[0008] Preferably, the air supply assembly includes an air pump, an air inlet pipe, a distribution valve, and an air outlet pipe. The air pump and the distribution valve are both located within the frame. The two ends of the air inlet pipe are connected to the air pump and the distribution valve, and the two ends of the air outlet pipe are connected to the distribution valve and the first airbag.

[0009] By adopting the above technical solution, the air pump injects gas into the distribution valve through the air inlet pipe, and the distribution valve then injects gas into the first airbag through the air outlet pipe, thereby controlling the inflation or deflation of the first airbag.

[0010] Preferably, the seat cushion and backrest are each provided with a plurality of second airbags, and a plurality of air outlet pipes are provided. The plurality of air outlet pipes are all provided on the distribution valve, and some of the air outlet pipes are connected to the first airbags, and other parts of the air outlet pipes are connected to the second airbags.

[0011] By adopting the above technical solution, the air pump injects gas into the distribution valve through the air inlet pipe, and the distribution valve then injects the gas into the first airbag or the second airbag through the air outlet pipe. The second airbag inflates or deflates, thereby adjusting the seat cushion and backrest, further improving the comfort of passengers.

[0012] Preferably, the air intake pipe is equipped with a filter.

[0013] By adopting the above technical solution, the gas in the intake pipe is filtered using a filter, making the gas purer.

[0014] Preferably, the mounting plate is provided with multiple hooks on both sides, and the multiple hooks are hooked onto the frame.

[0015] By adopting the above technical solution, the mounting plate is installed using hooks, which facilitates the installation and removal of the mounting plate.

[0016] Preferably, connecting rods are provided on both opposite sides of the mounting plate, and the hooks are provided on the connecting rods.

[0017] By adopting the above technical solution, the hook is installed on the connecting rod, making the hook more stable.

[0018] Preferably, a plurality of cables are provided between the two connecting rods, the cables are located on the side of the mounting plate away from the first airbag, and the hooks are provided at the ends of the cables.

[0019] By adopting the above technical solution, when the first airbag is inflated and deployed, the hook, cable and connecting rod together support the mounting plate, making the first airbag support the seat better.

[0020] Preferably, a reinforcing rod is provided on the side wall of the mounting plate away from the first airbag, and the reinforcing rod is connected to multiple cables.

[0021] By adopting the above technical solution, multiple cables are connected using reinforcing rods, thereby further improving the support effect of the cables.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Utilizing the first airbag, in the standard sitting position, the air supply component controls the inflation and deployment of the first airbag, which supports the seat back, allowing it to effectively conform to the passenger's lumbar curve and provide good support to enhance comfort. In the lying position, the air supply component controls the deflation and retraction of the first airbag, and the deformation gap allows the seat back to deform and move towards the mounting plate, reducing the height difference between the upper surface of the seat cushion and the top of the seat back, thereby improving the lying comfort of the seat that eliminates the step difference between the seat back and the seat back in the lying flat mode of passenger vehicles.

[0024] 2. With the help of the second airbag, the air pump injects gas into the distribution valve through the air inlet pipe, and the distribution valve then injects gas into the first airbag or the second airbag through the air outlet pipe. The second airbag inflates or deflates, thereby adjusting the seat cushion and backrest to further improve the comfort of the passenger.

[0025] 3. With the help of hooks, cables and connecting rods, when the first airbag is inflated and deployed, the hooks, cables and connecting rods work together to support the mounting plate, making the first airbag support the seat better. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of the seat in the passenger car that eliminates the step difference in the reclining mode;

[0027] Figure 2 A side view of the seat in the passenger car in reclining mode to eliminate the step difference in this application;

[0028] Figure 3 A partial structural cross-sectional view of the seat in the passenger vehicle that eliminates the step difference in the reclining mode, as described in this application;

[0029] Figure 4 This is a partial structural diagram of the seat in the passenger vehicle that eliminates the step difference in the reclining mode, as shown in this application, to highlight the first airbag;

[0030] Figure 5 This is a partial structural diagram of the seat in the passenger vehicle that eliminates the step difference in the reclining mode, as shown in this application, to highlight the reinforcing bar;

[0031] Figure 6 This is a partial structural diagram of the seat in the passenger vehicle that eliminates the step difference in the reclining mode, as shown in this application, to highlight the second airbag.

[0032] Reference numerals: 1. Frame; 2. Seat cushion; 3. Backrest; 4. Seat backrest; 5. Mounting plate; 6. Deformation gap; 7. First airbag; 8. Air supply assembly; 81. Air pump; 82. Inlet pipe; 83. Distribution valve; 84. Outlet pipe; 9. Second airbag; 10. Hook; 11. Connecting rod; 12. Cable; 13. Reinforcing rod; 14. Filter. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] This application discloses a seat that eliminates the difference in seating position when the passenger car is in a reclining mode.

[0035] Reference Figure 1 and Figure 2 A seat that eliminates the step difference in the reclining mode of a passenger car includes a frame 1, on which a seat cushion 2 and a backrest 3 are installed. The frame 1 can drive the backrest 3 to rotate, so that the backrest 3 flips backward to a horizontal state.

[0036] Reference Figure 2 , Figure 3 and Figure 4 A seat back 4 is formed on the bottom side of the backrest 3 near the seat cushion 2. An installation plate 5 is installed inside the frame 1. The installation plate 5 is located on the bottom side of the backrest 3 away from the seat cushion 2. Two first airbags 7 are fixedly installed on the side wall of the installation plate 5 near the seat back 4. A deformation gap 6 is formed between the installation plate 5 and the seat back 4.

[0037] An air supply assembly 8 is installed inside the frame 1. The air supply assembly 8 includes an air pump 81, an air inlet pipe 82, a distribution valve 83, and eighteen air outlet pipes 84. The air pump 81 is fixedly installed inside the frame 1, and the air inlet pipe 82 is installed on the air pump 81. A filter 14 is installed on the side wall of the mounting plate 5 away from the seat 4, and the air inlet pipe 82 is connected to the filter 14. The distribution valve 83 is fixedly installed inside the frame 1, and the end of the air inlet pipe 82 away from the air pump 81 is connected to the distribution valve 83. The eighteen air outlet pipes 84 are installed on the distribution valve 83, and the ends of two air outlet pipes 84 away from the distribution valve 83 are connected to two first airbags 7.

[0038] When the passenger is in a standard sitting posture, the system controls the air pump 81 to inject air into the distribution valve 83 through the air inlet pipe 82. The distribution valve 83 then inflates the two first airbags 7 through the air outlet pipe 84, causing the two first airbags 7 to deploy and apply support to the internal structure of the seat back 4. This action drives the surface of the seat back 4 to conform to the passenger's lumbar physiological curve, forming precise lumbar support and significantly improving sitting comfort. At the same time, by controlling the amount of air injected into the first airbags 7, the support force of the first airbags 7 can be adjusted, thereby adjusting the support effect of the seat back 4 and further improving sitting comfort.

[0039] When the seat is adjusted to a flat reclining position, the system actively deflates the first airbag 7 to ensure a flat lying position. After the first airbag 7 retracts, the deformation gap 6 formed between the seat back 4 and the mounting plate 5 allows the seat back 4 structure to naturally move backward and deform to a certain extent towards the mounting plate 5 under the passenger's weight. This effectively eliminates the height difference between the top of the seat back 4 and the upper surface of the seat cushion 2, thus forming a relatively flat reclining surface and greatly improving comfort in the flat reclining position.

[0040] Reference Figure 4 and Figure 5 Connecting rods 11 are installed on both sides of the mounting plate 5 in the horizontal direction, and the connecting rods 11 are installed in the vertical direction. Five cables 12 are installed on the side of the mounting plate 5 away from the seat 4, and the two ends of the five cables 12 are respectively wrapped around the two connecting rods 11. A reinforcing rod 13 is installed in the vertical direction on the side of the mounting plate 5 away from the seat 4, and the reinforcing rod 13 is fixedly connected to the middle of the three cables 12. The two ends of the two cables 12 and the bottom ends of the two connecting rods 11 are bent to form hooks 10, and all six hooks 10 are hooked onto the frame 1.

[0041] When the first airbag 7 inflates and deploys, the hook 10, cable 12, and connecting rod 11 work together to support the mounting plate 5, effectively improving the overall rigidity of the mounting plate 5 and making the support effect of the seat 4 more stable and uniform. Simultaneously, the reinforcing rod 13 integrates the stress state of multiple cables 12, effectively improving the coordination of the cables 12 and avoiding localized stress concentration, thereby enhancing the support strength and reliability of the mounting plate 5. In terms of connection, the mounting plate 5 achieves rapid assembly via the hook 10, facilitating efficient disassembly and assembly during manufacturing and maintenance.

[0042] Reference Figure 2 and Figure 6 Multiple second airbags 9 are embedded in the seat cushion 2, backrest 3, and seat back 4. The ends of sixteen air outlet pipes 84, away from the distribution valve 83, are connected to the sixteen second airbags 9 respectively. The air pump 81 injects gas into the distribution valve 83 through the air inlet pipe 82. The distribution valve 83 then injects gas into the second airbags 9 through the air outlet pipes 84. The second airbags 9 inflate or deflate, thereby adjusting the seat cushion 2 and backrest 3 and further improving the passenger's comfort.

[0043] The implementation principle of a seat in this application embodiment that eliminates the step difference between the seat and backrest in a passenger vehicle's reclining mode is as follows: When the passenger is in a standard sitting posture, the system controls the air pump 81 to inject air into the distribution valve 83 through the air inlet pipe 82. The distribution valve 83 then inflates the first airbag 7 through the air outlet pipe 84, causing the first airbag 7 to deploy and apply support to the internal structure of the seat back 4. This action drives the surface of the seat back 4 to conform to the passenger's lumbar physiological curve, forming precise lumbar support and significantly improving sitting comfort. When the seat is adjusted to a reclining posture, to ensure the flatness of the reclining position, the system controls the first airbag 7 to actively deflate. After the first airbag 7 retracts, the deformation gap 6 formed between the seat back 4 and the mounting plate 5 allows the seat back 4 structure to naturally move backward and deform to a certain extent towards the mounting plate 5 under the passenger's weight. This effectively eliminates the height difference between the top of the seat back 4 and the upper surface of the seat cushion 2, thereby forming a relatively flat reclining plane and greatly improving comfort in the reclining state.

[0044] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A seat that eliminates the step difference in reclining mode of a passenger vehicle, characterized in that: The device includes a frame (1) and a seat cushion (2) and a backrest (3) mounted on the frame (1). A seat back (4) is formed at the bottom of the outer side of the backrest (3). An mounting plate (5) is provided at the bottom of the frame (1) located inside the backrest (3). A deformation gap (6) is formed between the mounting plate (5) and the seat back (4). A first airbag (7) is provided on the side of the mounting plate (5) near the seat back (4). An air supply component (8) is provided inside the frame (1). The air supply component (8) is connected to the first airbag (7) and controls the inflation or deflation of the first airbag (7).

2. A seat according to claim 1 that eliminates the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: The air supply assembly (8) includes an air pump (81), an air inlet pipe (82), a distribution valve (83), and an air outlet pipe (84). The air pump (81) and the distribution valve (83) are both located inside the frame (1). The two ends of the air inlet pipe (82) are connected to the air pump (81) and the distribution valve (83). The two ends of the air outlet pipe (84) are connected to the distribution valve (83) and the first airbag (7).

3. A seat according to claim 2 that eliminates the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: Multiple second airbags (9) are provided in both the seat cushion (2) and the backrest (3). Multiple air outlet pipes (84) are provided, and all of the multiple air outlet pipes (84) are provided on the distribution valve (83). Some of the air outlet pipes (84) are connected to the first airbag (7), and the other part of the air outlet pipes (84) are connected to the second airbags (9).

4. A seat for eliminating the difference in seating position in a passenger vehicle's reclining mode according to claim 2, characterized in that: A filter (14) is provided on the air intake pipe (82).

5. A seat according to claim 1 for eliminating the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: The mounting plate (5) is provided with multiple hooks (10) on both sides, and the multiple hooks (10) are hooked onto the frame (1).

6. A seat according to claim 5 that eliminates the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: The mounting plate (5) is provided with connecting rods (11) on both sides, and the hooks (10) are provided on the connecting rods (11).

7. A seat according to claim 6 that eliminates the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: A plurality of cables (12) are provided between the two connecting rods (11), the cables (12) are located on the side of the mounting plate (5) away from the first airbag (7), and the hooks (10) are provided at the ends of the cables (12).

8. A seat according to claim 7 that eliminates the difference in seating position when the passenger vehicle is in a reclining mode, characterized in that: A reinforcing rod (13) is provided on the side wall of the mounting plate (5) away from the first airbag (7), and the reinforcing rod (13) is connected to multiple cables (12).

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