Cushion assembly, seat and use method of seat

Abstract

The invention provides a cushion, a seat and a using method of the seat. The seat cushion comprises a first driving motor and a second driving motor, a cushion frame; the seat basin comprises a front end and a rear end which are respectively positioned in the length direction; the seat basin is arranged on the seat cushion frame through the height adjusting assembly and can move relative to the seat cushion frame; the height adjusting assembly comprises a front-end adjusting part and a rear-end adjusting part, the rear-end adjusting part comprises a swing arm part and a connecting rod part, the swing arm part receives rotary motion output by the first driving motor to rotate, one end of the connecting rod part is hinged to the swing arm part, and the other end of the connecting rod part is hinged to the seat basin; the front end adjusting part comprises a rotating shaft piece.

Description

Technical Field

[0001] This application relates to seat cushion components, seats, and methods of using seats. Background Technology

[0002] With the development of car user needs, a solution has emerged that allows car seats to function as a bed within the car cabin. When a user needs to lie down and rest, the seat can be reclined, with the backrest reclined to be almost flush with the seat cushion. In this state, the seat functions as a bed, hence the "bed mode".

[0003] However, the inventors discovered that in the current double bed design, there is a significant height difference between the back of the seat cushion and the connection point of the backrest, which affects the comfort of the double bed design.

[0004] Therefore, there is a need in the art for a new cushion assembly, seat, and method of using the seat to improve the user experience of the seat user, especially the comfort of the bed mode. Summary of the Invention

[0005] The purpose of this invention is to provide a seat cushion assembly.

[0006] Another object of the present invention is to provide a seat.

[0007] Another object of the present invention is to provide a method of using a seat.

[0008] According to a first aspect of the present invention, a seat cushion assembly includes: a first drive motor; a seat cushion frame; a seat basin including a front end and a rear end respectively located in the length direction; a height adjustment assembly, wherein the seat basin is disposed on the seat cushion frame via the height adjustment assembly and is movable relative to the seat cushion frame; the height adjustment assembly includes a front end adjustment portion and a rear end adjustment portion, the rear end adjustment portion including a swing arm and a connecting rod, the swing arm receiving rotational motion output from the first drive motor and rotating, the connecting rod being hinged to the swing arm at one end and the seat basin at the other end; the front end adjustment portion includes a pivot; the motion transmission path for adjusting the height of the seat basin is configured such that rotation output from the first drive motor drives the swing arm to rotate, drives the connecting rod to rotate, and drives the rear end of the seat basin to rotate relative to the front end about the pivot.

[0009] The technical solution of this application improves the comfort of the double bed mode by setting a dedicated drive motor in the seat cushion assembly and setting a swing arm and a connecting rod as the rear adjustment part and a fixed rotating shaft as the front adjustment part in the height adjustment assembly. This allows the seat to be raised independently of the backrest, so that the rear end of the seat cushion can be raised to a position with a small height difference with the connection point of the backrest, or even close to or actually flush with the connection point of the backrest.

[0010] In one or more embodiments of the seat cushion assembly, the seat cushion frame includes a first side frame and a second side frame located on both sides in the width direction; the first drive motor is disposed on one of the first side frame and the second side frame; the swing arm component includes a first gear component, a synchronizing rod, and a swing rod component; the first gear component is located on one of the first side frame and the second side frame where the first drive motor is disposed; the swing rod component is disposed on the other of the first side frame and the second side frame; and the synchronizing rod is fixedly connected to the first gear component and the swing rod component on both sides of the synchronizing rod.

[0011] In one or more embodiments of the seat cushion assembly, the first gear component is a toothed plate component.

[0012] In one or more embodiments of the seat cushion assembly, the linkage includes a first linkage and a second linkage, wherein the first linkage is hinged to the first gear and the second linkage is hinged to the swing arm.

[0013] In one or more embodiments of the seat cushion assembly, the rear end of the seat basin rotates about the pivot relative to the front end by an angle of 15°-30°.

[0014] According to a second aspect of the present invention, a seat includes a seat cushion, including a seat cushion assembly as described in the first aspect; and a backrest including a backrest frame rotatably connected to the seat cushion frame.

[0015] The above-mentioned seat technology, by employing the seat cushion component described in the first aspect, can achieve good comfort.

[0016] In one or more embodiments of the seat, the seat further includes a second drive motor capable of driving the backrest frame to rotate relative to the seat cushion frame; through the rotation of the backrest frame relative to the seat cushion frame, and the rotation of the rear end of the seat about the pivot relative to the front end, the surface of the seat cushion and the surface of the backrest are made flush in the height direction.

[0017] In one or more embodiments of the seat, the seat cushion further includes a first foam portion and a second foam portion, the second foam portion being located further rearward relative to the first foam portion; the second foam portion is a fixing member, the first foam portion is a moving member, the backrest further includes a backrest cover, the lower end of the backrest cover is provided with an arcuate contact surface, the arcuate contact surface and the second foam portion are configured to have a first interference connection section, and the first foam portion and the second foam portion are configured to have a second interference connection section.

[0018] In one or more embodiments of the seat, the dimensions of the first interference-fit section and the second interference-fit section are 5mm-10mm.

[0019] In one or more embodiments of the seat, the seat cushion includes a seat cushion foam. In the width direction, the seat cushion foam includes a central portion and a first side portion and a second side portion on both sides of the central portion. The first foam portion is located in the central portion. The first side portion and the second side portion are separated from the central portion by a cutting line. The first side portion and the second side portion are fasteners.

[0020] In one or more embodiments of the seat, the number of seats is plurality of, and the seat further includes a leg rest disposed at the front end of the seat cushion in the longitudinal direction. The plurality of adjacent seats have at least one of the following configurations: a seat mode, a single-row double bed mode, or a multi-row double bed mode. In the seat mode, the adjacent plurality of seats are in a sitting position. In the single-row double bed mode, a single seat is in a reclining position, and the backrest of the reclining seat, the seat cushion of the seat it occupies, and the leg rest provide a bed surface for the double bed mode. In the multi-row double bed mode, at least one of the adjacent plurality of seats is in a reclining position; the backrest of the reclining seat, the seat cushion of the seat it occupies, and the seat cushions of adjacent seats provide a bed surface for the double bed mode. Attached Figure Description

[0021] The above and other features, properties, and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, in which the same reference numerals always denote the same features. It should be noted that these drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection actually claimed by the present invention, wherein:

[0022] Figure 1 This is an exploded view of a seat according to one embodiment.

[0023] Figures 2A to 2C This is a schematic diagram illustrating the structure of a seat that can be adjusted from a seat mode to a bed mode, according to one embodiment.

[0024] Figure 3 This is a schematic diagram illustrating the principle of adjusting a seat cushion assembly from seat mode to bed mode according to one embodiment.

[0025] Figure 4A as well as Figure 4B This is a schematic diagram of the structure of a seat cushion assembly according to one embodiment.

[0026] Figures 5A to 5C This is a partial structural diagram of a seat adjusting from seat mode to bed mode according to one embodiment.

[0027] Figure 6 This is a schematic diagram of the structure of the second foaming section of a seat according to one embodiment.

[0028] Figure 7 This is a structural schematic diagram of a seat configuration according to one embodiment.

[0029] Figure 8A , Figure 8B This is a structural diagram of a multi-row king-size bed mode and a single-row king-size bed mode, as shown in one embodiment.

[0030] Figure label:

[0031] 100-seat

[0032] 101-Seat Cushion

[0033] 1011 - Surface of the seat cushion

[0034] 1013 - First Foaming Section

[0035] 1014 - Second Foaming Section

[0036] 10141 - Plastic Base

[0037] 10142-Fogging

[0038] 10143-Mask

[0039] 1015-Seat cushion, large bed mode, reserved location

[0040] 102-Backrest

[0041] 1021-Backrest Frame

[0042] 1022 - The surface of the backrest

[0043] 1023-Backpack Cover

[0044] 10231 - Arc-shaped contact surface

[0045] 1024-Angle Adjuster

[0046] 1025 - Reservation location for a double bed with a backrest

[0047] 1031-First Interference Connection Section

[0048] 1032 - Second Interference Connection Section

[0049] 1033 - Third Interference Connection Section

[0050] 10-Seat Cushion Assembly

[0051] 1-First drive motor

[0052] 2-Seat Cushion Frame

[0053] 201-Rear Crossbeam

[0054] 21-First side frame

[0055] 22-Second side frame

[0056] 3-Sitz bath

[0057] 31-Frontend

[0058] 32-Backend

[0059] 4-Height Adjustment Component

[0060] 41-Front-end Adjustment Section

[0061] 411-Shaft

[0062] 42-Rear Adjustment Section

[0063] 421-Swing arm component

[0064] 4211-First Gear

[0065] 4212-Synchronizer Rod

[0066] 4213-Planer rod component

[0067] 422-Connecting rod

[0068] 4221 - First Link

[0069] 4222 - Second connecting rod. Detailed Implementation

[0070] Reference will now be made in detail to various embodiments of the invention, examples of which are shown in the accompanying drawings and described below. Although the invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the invention to those exemplary embodiments. Rather, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents, and other embodiments that may be included within the spirit and scope of the invention as defined by the appended claims.

[0071] In the following description, the orientation or positional relationship indicated by the terms "front", "rear" or other directional terms is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of the present invention and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0072] Furthermore, this application uses specific terms to describe its embodiments. For example, "an embodiment" and / or "one embodiment" refers to a particular feature, structure, or characteristic associated with at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

[0073] Although the seat cushion assembly disclosed in this application is applicable to automobile seats to improve comfort, it is not limited thereto. For example, it can be applied to other transportation applications, such as heavy vehicles, railway trains, and ships, as well as fixed locations, such as meeting rooms, auditoriums, cinemas, massage chairs, etc. As long as the seat can be fitted with the seat cushion assembly disclosed in this application, it is acceptable.

[0074] refer to Figures 1 to 6 Especially Figure 1 as well as Figures 2A to 2C As shown, in some embodiments, the seat 100 may include a seat cushion 101 and a backrest 102. The seat cushion 101 includes a seat cushion assembly 10, which will be described below. The backrest 102 includes a backrest frame 1021. The backrest frame 1021 is rotatably connected to the seat cushion frame 2, and can be adjusted, for example, by a recliner 1024. The meaning of "recliner" is similar to that of general structures in the art. A recliner driven by a motor is generally a stepless recliner. For the need for quick folding, a high-speed motor should be configured. However, the recliner can also be a manually adjustable stepped recliner, and this is not a limitation. Here, taking the motor driving the recliner as a second drive motor as an example, the seat also includes a second drive motor, which can drive the backrest frame 1021 to rotate relative to the seat cushion frame 2; through the rotation of the backrest frame 1021 relative to the seat cushion frame 2, and the rotation of the rear end 32 of the seat basin 3 about the pivot 411 relative to the front end 31, such as Figure 4A as well as Figure 4B As shown, the surface 1011 of the seat cushion is flush with the surface 1022 of the backrest in the height direction.

[0075] It can be understood that, such as Figure 1 As shown, the seat cushion 101 and backrest 102 of the seat 100 generally have a skin-like and foamed surface structure. Figures 2A to 2C To clearly show the internal structure of the seat, the upholstery and foam parts have been omitted.

[0076] refer to Figure 1 ,as well as Figures 5A to 5C , Figure 6As shown, in some embodiments, the seat cushion 101 further includes a first foam portion 1013 and a second foam portion 1014. The first foam portion 1013 is fixedly connected to the seat basin 3, providing the surface 1011 of the seat cushion. The second foam portion 1014 is located further rearward relative to the first foam portion 1013, for example, at the rear end of the seat cushion. The second foam portion 1014 is a fastener, for example, fixedly connected to the seat cushion frame 2, for example, fixedly connected to the rear crossbeam 201 of the seat cushion frame 2. Figure 6 As shown, the specific structure of the second foaming part 1014 may include a plastic base 10141, foam 10142, and a cover 10143. The plastic base 10141 serves to support the A-side and connect to the seat cushion frame 2, for example, to the rear crossbeam 201. The first foaming part 1013 is a movable component. The backrest 102 also includes a backrest cover 1023, which provides the backrest surface 1022. The lower end of the backrest cover 1023 provides an arc-shaped contact surface 10231. Here, "arc" generally refers to a uniform arc, such as an arc concentric with the pivot of the adjuster 1024. The arc-shaped contact surface 10231 and the second foaming part 1013 are configured to have a first interference fit section 1031, and the first foaming part 1013 and the second foaming part 1014 are configured to have a second interference fit section 1032. The meaning of "interference section" here is borrowed from the meaning of interference fit in shaft-hole connection, that is, as... Figure 5A , Figure 5B As shown, in the seat mode, i.e., the normal sitting mode, the dimensional contour lines between the arc-shaped contact surface 10231 and the second foam part 1013, and between the first foam part 1013 and the second foam part 1014, coincide, meaning there is an overlapping and pressing area between them. The covering and the foam part have similar meanings; both are structures with foam and a surface covered with a skin. The beneficial effect of this is that the seat cushion angle can be adjusted to achieve a level seat in the double bed mode; the seat cushion foam is divided into a movable first foam part and a fixed second foam part, thus avoiding the problem of gaps between the seat cushion and the backrest in the double bed mode. Specifically, refer to... Figures 5A to 5C As shown, in seat mode, as Figure 2A , Figure 5A As shown, in the normal seating mode of the seat, the curved contact surface 10231 and the second foam section 1013 are configured with a first interference fit section 1031, and the first foam section 1013 and the second foam section 1014 are configured with a second interference fit section 1032, and are relatively stationary. During the process of adjusting from the seat mode to the bed mode, as... Figures 5B to 5C As shown, Figure 2B , Figure 5B As shown, after the backrest 102 tilts back to a specific angle, as Figure 2C , Figure 5CAs shown, the first foam section 1013 of the seat cushion is raised at the rear end following the action of the height adjustment component 4. During this process, after the first foam section 1013 and the second foam section 1013 at the rear end of the seat cushion are longitudinally offset, they are interference-fitted with the arc-shaped contact surface 10231 of the backrest, that is, the two are connected with overlapping compression to form a third interference-fit connection section 1033, ensuring that there is no gap between the seat cushion and the backrest in the double bed mode. Reference Figure 1 As shown, in some embodiments, the seat cushion 101 includes a seat cushion foam 1010. In the width direction, the seat cushion foam 1010 includes a middle portion 10101 and a first side portion 10102 and a second side portion 10103 on both sides of the middle portion 10101. The first foam portion 1013 is located in the middle portion 10101. The first side portion 10102 and the second side portion 10103 are separated from the middle portion 10101 by a cutting line 10104. The first side portion 10102 and the second side portion 10103 are fixed members. The advantage of this is that, for the entire seat cushion foam 1010, only the height of the first foam portion 1013 at the rear end of the middle portion 10101 needs to be adjusted, without adjusting the areas of the first side portion 10102 and the second side portion 10103.

[0077] Preferably, in some embodiments, the dimensions of the first interference connection section 1031 and the second interference connection section 1032 are 5mm-10mm, that is, the width of the overlapping and pressing part between the arc-shaped contact surface 10231 and the second foaming part 1013, and between the first foaming part 1013 and the second foaming part 1014 is 5mm-10mm. This can avoid gaps between the seat cushion and the backrest while reducing the risk of friction noise between the two.

[0078] refer to Figure 1 , Figures 2A to 2C ,as well as Figure 3 , Figure 4A as well as Figure 4B As shown, the structure of the seat cushion assembly 10, which can be independently adjusted in height, will be described in detail below. In some embodiments, the seat cushion assembly 10 may include a first drive motor 1, a seat cushion frame 2, a seat basin 3, and a height adjustment assembly 4 for adjusting the height of the seat basin.

[0079] The first drive motor 1, as its name suggests, provides the driving force for the height adjustment component 4 to adjust its height. The first drive motor can be a brushed motor, a brushless motor, or similar in type. Furthermore, the term "first drive motor 1" should be interpreted broadly, meaning it can refer to a standalone motor or a motor assembly consisting of a motor and gears, similar to the common concept of a "geared motor" in this field, without limitation. It is important to note that the first drive motor 1 is generally separate from the second drive motor used to drive the angle adjuster, allowing for independent adjustment of both. However, it is not impossible to employ a complex transmission mechanism that allows the same drive motor to independently drive both the height adjustment component 4 and the angle adjuster.

[0080] The seat basin 3 is generally located within the space defined by the seat cushion frame 2. The seat basin 3 includes a front end 31 and a rear end 32 located in the length direction. It can be understood that in the normal sitting mode of the seat, such as... Figure 4A as well as Figure 4B As shown, the height of the front end 31 is generally higher than that of the rear end 32. Therefore, in order to ensure the comfort of the double bed mode, the rear end 32 needs to be raised.

[0081] The seat basin 3 is mounted on the seat cushion frame 2 via a height adjustment assembly 4 and is movable relative to the seat cushion frame 2. The height adjustment assembly 4 includes a front adjustment part 41 and a rear adjustment part 42. The rear adjustment part 42 includes a swing arm 421 and a connecting rod 422. The swing arm 421 rotates by receiving rotational motion output from the first drive motor 1. The connecting rod 422 is hinged to the swing arm 421 at one end and to the seat basin 3 at the other end. The front adjustment part 41 includes a pivot 411. The pivot 411 can be mounted and fixed to the seat cushion frame 2.

[0082] The motion transmission path for adjusting the height of the basin 3 is configured as follows: the rotation output from the first drive motor 1 drives the swing arm 421 to rotate, which in turn drives the connecting rod 422 to rotate, causing the rear end 32 of the basin 3 to rotate around the pivot 411 relative to the front end 31. Using this height adjustment assembly, the rotation angle of the rear end 32 of the basin 3 around the pivot 411 relative to the front end 31 is 15°-30°, achieving a large angle adjustment and thus a wide height adjustment range.

[0083] As mentioned above, during the process of switching from seat mode to bed mode, such as Figure 2B , Figure 5B As shown, after the backrest 102 tilts back to a specific angle, as Figure 2C , Figure 5C As shown, the rear end 32 of the sitz bath 3 is raised by the height adjustment component 4. Figure 3 As shown, the rear end 32 of the sitz bath 3 can be raised to a position that is substantially flush with the front end 31 and the backrest 102.

[0084] The beneficial effect of this is that by setting a dedicated drive motor in the seat cushion assembly and setting a swing arm and connecting rod as the rear adjustment part and a fixed rotating shaft as the front adjustment part in the height adjustment assembly, the seat can be raised independently of the backrest. This allows the rear end of the seat cushion to be raised to a position with a small height difference with the connection point of the backrest, or even close to or practically flush with the connection point of the backrest, thereby improving the comfort of the double bed mode.

[0085] refer to Figure 4A as well as Figure 4B As shown, in some embodiments, the distribution structure of the height adjustment component 4 in the seat cushion component 10 may be as follows: the seat cushion frame 2 includes a first side frame 21 and a second side frame 22 located on both sides in the width direction; the first drive motor 1 is disposed on one of the first side frame 21 and the second side frame 22; the swing arm component 421 includes a first gear component 4211, a synchronizing rod 4212, and a swing rod component 4213; the first gear component 4211 is located on one of the first side frame 21 and the second side frame 22 where the first drive motor 1 is disposed; the swing rod component 4213 is disposed on the other of the first side frame 21 and the second side frame 22; and the synchronizing rod 4212 is fixedly connected to the first gear component 4211 and the swing rod component 4213 on both sides of the synchronizing rod 4212. Correspondingly, the connecting rod 422 includes a first connecting rod 4221 and a second connecting rod 4222. The first connecting rod 4221 is hinged to the first gear 4211; the second connecting rod 4222 is hinged to the rocker arm 4213. The specific hinge structure can be a conventional structure such as riveting or pin connection, which will not be described in detail here.

[0086] The motion transmission path for adjusting the height of the seat basin 3 is configured as follows: the rotation output from the first drive motor 1 is transmitted through the first gear 4211, which drives the first connecting rod 4221 hinged to it; at the same time, the first gear 4211 drives the synchronous rod 4212 rigidly connected to the first gear 4211 to rotate, the synchronous rod 4212 drives the swing rod 4213 on the other side to swing, the swing rod 4213 drives the second connecting rod 4222 hinged to it, and through the first connecting rod 4221 and the second connecting rod 4222, the rear end 32 of the seat basin 3 is simultaneously driven to rotate around the rotating shaft 411 relative to the front end 31.

[0087] The gear component 4211 here refers to a component that transmits power through the principle of gear transmission. Preferably, in some embodiments, the first gear component 4211 is a toothed plate component, that is, a plate-shaped component that transmits power through gears. The toothed plate component generally includes a toothed section and a non-toothed section. The extreme positions of the height adjustment stroke of the corresponding height adjustment component can be achieved at both ends of the toothed section. Through the structure of dual-sided distribution and synchronous rod drive, the height adjustment component has good longitudinal rigidity and synchronization, and the structure is simple and compact, does not occupy leg rest space, and is beneficial to the spatial arrangement of the seat cushion component 10 in the seat. Figures 2A to 2C As shown, a leg rest 104 can be installed in the area of ​​the seat frame 2, such as... Figure 2C As shown, when the seat cushion 101 is in the reserved position 1015 of the large bed mode, the leg rest 104 can also be extended to further enhance comfort.

[0088] As described above, this application also provides a method for using a seat, employing the seat 100 described in the above embodiments. The seat 100 has a seat mode or a bed mode, and the steps for switching from the seat mode to the bed mode include:

[0089] The backrest 102 rotates relative to the seat cushion 101 to the pre-set position 1025 of the backrest in the large bed mode;

[0090] Then, the rear end 32 of the seat basin 3 rotates relative to the front end 31 around the pivot 411 until the rear end 32 of the seat basin 3 is level with the front end 31 in the height direction, so that the seat cushion 101 is located in the predetermined position 1015 of the large bed mode of the seat cushion.

[0091] refer to Figure 7 as well as Figure 8A , Figure 8B As shown, the above-mentioned seats 100 are generally arranged in multiple rows in vehicles, with multiple adjacent seats having seating modes, and Figure 8A The multi-row double bed pattern shown, or Figure 8B The single-row double bed layout shown:

[0092] In seat mode, the posture of multiple adjacent seats 100 is sitting posture 1001.

[0093] exist Figure 8A In the multi-row double bed configuration shown, at least one of the adjacent seats 100 is in a reclining position 1002; the backrest 102 of the seat in the reclining position 1002, the seat cushion 101 of the seat it is in, and the seat cushion 101 of the adjacent seats provide a bed surface 1003 for the double bed configuration.

[0094] Although the seat cushion assembly disclosed in this application is applicable to seats, taking vehicle seats as an example, to improve comfort, especially in the comfort of a double bed mode, it is not limited thereto. For example, it can be applied to other transportation applications, such as trains, ships, and airplanes, and can also be applied to fixed places, such as meeting rooms, auditoriums, cinemas, massage chairs, etc. As long as it is a seat, especially multiple adjacent seats, the seat cushion assembly disclosed in this application can be used.

[0095] refer to Figure 7 as well as Figure 8A , Figure 8B As shown, taking a vehicle as an example, it may include multiple adjacent seats 100, such as the front and rear seats of the vehicle. Figure 3 As shown, the seat 100 may include a seat cushion 101 and a backrest 102, the backrest 102 and the seat cushion 101 being able to rotate relative to each other about the seat cushion 101, for example... Figure 7 as well as Figure 8A , Figure 8B As shown, this allows the posture of seat 100 to switch between a sitting position 1001 and a reclining position 1002, and adjacent rows of seats can have Figure 7 The seat mode shown, or Figure 8A , Figure 8B The double bed layout shown.

[0096] exist Figure 7 The seating pattern shown depicts multiple adjacent seats 100 in a sitting posture 1001. Here, sitting posture 1001 corresponds to the user's seated position. Figure 7 As shown, based on ergonomic principles, the rear end of the seat cushion 101 is generally lower than the front end in the height direction.

[0097] exist Figure 8A In the multi-row double bed configuration shown, at least one of the adjacent seats 100 is in a reclining position 1002. The backrest 102 of the seat in the reclining position 1002, along with the seat cushion 101 of the seat itself and the seat cushions 101 of adjacent seats, provides the bed surface 1003 for the double bed configuration. The reclining position 1002 here corresponds to the user's lying-down posture. Figure 8A As shown, in the double bed mode, the rear end of the seat cushion 101 of the chair in the reclining position 1002, and / or the rear end of the seat cushion 101 of its adjacent chair, are raised in the height direction, regardless of whether the adjacent chair is in the sitting position 1001 shown in Figure 2 or also in the reclining position 1002. In the double bed mode, the rear end of the seat cushion 101 of the chair in the reclining position 1002, and / or the rear end of the seat cushion 101 of its adjacent chair, is raised, which allows for better support of the knees 2001 and / or head 2002 of the corresponding user 2000.

[0098] It is understandable. Figure 7 as well as Figure 8A The content shown is the seats in adjacent rows, which is not limited to only two rows of seats. For example, there can be three or more rows to form a double bed. In addition, the double bed can generally be formed by front and rear rows of seats, but it is not limited to this. For example, it can also be adjacent seats in the same row. However, it is generally necessary to rotate the direction of the seats so that the backrests of the seats in the same row are facing each other, so that when the backrests are lowered, they can provide a bed surface with the adjacent seat cushions.

[0099] refer to Figure 8B As shown, the double bed mode can also be a single row double bed mode, meaning that a single seat 100 can also provide a double bed mode.

[0100] In the single-row double bed mode, the posture of a single seat 100 is a reclining position 1002. The backrest 102 of the seat 100 in the reclining position 1002, the seat cushion 101 of the seat 100 itself, and the leg rest 104 provide the bed surface 1003 of the double bed mode. Similarly, in the single-row double bed mode, the rear end of the seat cushion 101 of the seat 100 in the reclining position 1002 is raised in the height direction so that the waist 2003 and hips 2004 of the corresponding user are better supported.

[0101] In summary, the beneficial effects of the seat cushion assembly, seat, and seat usage method described in the above embodiments include, but are not limited to, the use of a dedicated drive motor in the seat cushion assembly and a swing arm and connecting rod as the rear adjustment part and a fixed pivot as the front adjustment part in the height adjustment assembly, which allows the seat to be raised independently of the backrest, so that the rear end of the seat cushion can be raised to a position with a small height difference with the connection point of the backrest, or even close to or substantially flush with the connection point of the backrest, thereby improving the comfort of the seat in bed mode.

[0102] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any variations and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the invention, fall within the protection scope defined by the claims of the present invention.

Claims

1. A seat cushion assembly (10), characterized in that, include: First drive motor (1); Seat cushion frame (2); The basin (3) includes a front end (31) and a rear end (32) located in the length direction; A height adjustment assembly (4) is provided, wherein the seat basin (3) is disposed on the seat cushion frame (2) via the height adjustment assembly (4) and is movable relative to the seat cushion frame (2); the height adjustment assembly (4) includes a front adjustment part (41) and a rear adjustment part (42), the rear adjustment part (42) includes a swing arm (421) and a connecting rod (422), the swing arm (411) rotates by receiving the rotational motion output by the first drive motor (1), and the connecting rod (422) is hinged to the swing arm (421) at one end and to the seat basin (3) at the other end; the front adjustment part (41) includes a pivot (411); The motion transmission path for adjusting the height of the seat (3) is configured such that the rotation output from the first drive motor (1) drives the swing arm (421) to rotate, drives the connecting rod (422) to rotate, and drives the rear end (32) of the seat (3) to rotate relative to the front end (31) around the rotating shaft (411).

2. The seat cushion assembly (10) as claimed in claim 1, characterized in that, The seat frame (2) includes a first side frame (21) and a second side frame (22) located on both sides in the width direction; the first drive motor (1) is disposed in one of the first side frame (21) and the second side frame (22); the swing arm (421) includes a first gear (4211), a synchronizing rod (4212), and a swing rod (4213); the first gear (4211) is located in one of the first side frame (21) and the second side frame (22) where the first drive motor (1) is disposed; the swing rod (4213) is disposed in the other of the first side frame (21) and the second side frame (22); and the synchronizing rod (4212) is fixedly connected to the first gear (4211) and the swing rod (4213) on both sides of the synchronizing rod (4212).

3. The seat cushion assembly (10) as described in claim 2, characterized in that, The first gear component (4211) is a gear plate component.

4. The seat cushion assembly (10) as described in claim 2, characterized in that, The connecting rod (422) includes a first connecting rod (4221) and a second connecting rod (4222). The first connecting rod (4221) is hinged to the first gear (4211); the second connecting rod (4222) is hinged to the swing rod (4213).

5. The seat cushion assembly (10) as claimed in claim 1, characterized in that, The rear end (32) of the basin (3) rotates about the pivot (411) relative to the front end (31) by an angle of 15°-30°.

6. A seat (100), characterized in that, include: A seat cushion (101) comprising a seat cushion assembly (10) as described in any one of claims 1-5; as well as The backrest (102) includes a backrest frame (1021) which is rotatably connected to the seat cushion frame (2).

7. The seat (100) as claimed in claim 6, characterized in that, The seat also includes a second drive motor, which can drive the backrest frame (1021) to rotate relative to the seat cushion frame (2); through the rotation of the backrest frame (1021) relative to the seat cushion frame (2), and the rotation of the rear end (32) of the seat basin (3) about the pivot (411) relative to the front end (31), the surface of the seat cushion (1011) and the surface of the backrest (1022) are flush in the height direction.

8. The seat (100) as claimed in claim 6, characterized in that, The seat cushion (101) further includes a first foaming part (1013) and a second foaming part (1014), the second foaming part (1014) being located further back than the first foaming part (1013); the second foaming part (1014) is a fixing member, the first foaming part (1013) is a moving member, the backrest (102) further includes a backrest cover (1023), the lower end of the backrest cover (1023) is provided with an arc-shaped contact surface (10231), the arc-shaped contact surface (10231) and the second foaming part (1013) are configured to have a first interference connection section (1031), and the first foaming part (1013) and the second foaming part (1014) are configured to have a second interference connection section (1032).

9. As claimed in claim 8, the dimensions of the first interference connection section (1031) and the second interference connection section (1032) are 5mm-10mm.

10. The seat (100) as claimed in claim 6, characterized in that, The cushion (101) includes a cushion foam (1010). In the width direction, the cushion foam (1010) includes a middle portion (10101) and a first side portion (10102) and a second side portion (10103) on both sides of the middle portion (10101). The first foam portion (1013) is located in the middle portion (10101). The first side portion (10102) and the second side portion (10103) are separated from the middle portion (10101) by a cutting line (10104). The first side portion (10102) and the second side portion (10103) are fasteners.

11. The seat (100) as claimed in claim 6, characterized in that, The number of seats is multiple, and each seat (100) further includes a leg rest (104) disposed at the front end of the seat cushion (101) in the longitudinal direction. The multiple adjacent seats have a seating mode, and at least one of a single-row double bed mode or a multi-row double bed mode: In the seating mode, the posture of the adjacent plurality of seats (100) is a sitting posture (1001); In the single-row double bed mode, the posture of a single seat (100) is a reclining position (1002). The backrest (102) of the seat (100) in the reclining position (1002), the seat cushion (101) of the seat (100) itself, and the leg rest (104) provide the bed surface (1003) of the double bed mode. In the multi-row double bed mode, at least one of the adjacent multiple seats (100) is in a reclining position (1002); the backrest (102) of the seat in the reclining position (1002) and the seat cushion (101) of the seat it is in, as well as the seat cushion (101) of the adjacent seats, provide the bed surface (1003) of the double bed mode.

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