Adjustment system and seat

Abstract

The application provides an adjusting system and a seat. The adjusting system comprises a base frame, a seat cushion frame connected with a seat pan, a front adjusting part, a rear adjusting part, and the front side of the seat cushion frame is hinged to the front adjusting part, and the rear side of the seat cushion frame is hinged to the rear adjusting part. The adjusting system has a first state, a second state and a third state. In the first state, the front adjusting part provides a first height of the front side of the seat cushion frame, and the rear adjusting part provides a second height of the rear side of the seat cushion frame. In the second state, compared with the first state, the front adjusting part provides a front side height of the seat cushion frame from the first height to a minimum front side height, and the rear adjusting part provides a rear side height of the seat cushion frame from the second height to a minimum rear side height.

Description

Technical Field

[0001] This application relates to an adjustment system and a seat. Background Technology

[0002] With the development of the automotive industry and the increase in families with multiple children, consumers' demands for cars are becoming more diversified and multifunctional. For example, when the front seats are not occupied, rear passengers may want to enjoy a better view or see the contents of electronic displays such as the dashboard screen, which requires folding the backrests of the front seats forward into the seat cushion.

[0003] In addition, to provide passengers with a comfortable riding experience, the seat cushion can be designed to be adjustable in tilt angle, allowing passengers to adjust it according to their needs, such as realizing the function of a zero-gravity seat, so that passengers can use the zero-gravity mode of the zero-gravity seat to rest or lie down.

[0004] Therefore, there is a need in the field for a new adjustment system and seat that can achieve both folding and zero-gravity seating functions in a compact and simple structure. Utility Model Content

[0005] The purpose of this application is to provide a regulation system.

[0006] Another objective of this application is to provide a seat.

[0007] An adjustment system according to a first aspect of this application includes a base frame for connection to an external environment; a seat frame with a seat basin attached; a front adjustment portion hinged to the front side of the seat frame; and a rear adjustment portion hinged to the rear side of the seat frame. The adjustment system has a first state, a second state, and a third state. In the first state, the front adjustment portion provides a first height for the front side of the seat frame, and the rear adjustment portion provides a second height for the rear side of the seat frame. In the second state, relative to the first state, the front adjustment portion provides a minimum front height for the front side of the seat frame, and the rear adjustment portion provides a minimum rear height for the rear side of the seat frame, compared to the second state. In the third state, relative to the first state, the front adjustment portion provides a maximum front height for the front side of the seat frame, and the rear adjustment portion provides a rear height for the rear side of the seat frame that is not greater than the second height.

[0008] The technical solution of this application sets up a front adjustment part and a rear adjustment part, and the seat cushion frame is hinged to both on both sides in the length direction. It has different dynamic structures in the first state, the second state and the third state, so that the seat can realize the functions of folding and tilting adjustment with a compact and simple structure. The same adjustment system can meet the needs of folding and zero gravity seat, and the structure is compact and the cost is low.

[0009] In one or more embodiments of the adjustment system, the front adjustment part includes a first link and a second link. The first link is connected to a first driving member and is hinged to a first connecting position and a second link, respectively. The first connecting position is located in the base frame. The second link is hinged to the front side of the seat frame at a first position and to the first link at a second position. In the first state, the height of the first position is the first position height, and the height of the second position is the second position height. In the second state, relative to the first state, the first link can be locked by the first driving member to keep the height of the second position at the second position height, and the second link rotates forward around the second position to reduce the height of the first position from the first position height to the minimum first position height. In the third state, relative to the first state, the first link can be driven by the first driving member to rotate backward around the first connecting position to raise the height of the second position to the maximum second position height, thereby raising the height of the first position to the maximum first position height.

[0010] In one or more embodiments of the adjustment system, the rear adjustment part includes a third link connected to a second drive member, and the third link is hinged to a second connection position and to the rear side of the seat cushion frame at a third position; the second connection position is located in the base frame; in the first state, the height of the third position is the third position height; in the second state, relative to the first state, the third link can be driven by the second drive member to rotate forward around the second connection position, so that the height of the third position is reduced to the minimum third position height; in the third state, relative to the first state, the third link can be locked by the second drive member so that the height of the third position is maintained at the third position height, and the seat cushion frame rotates around the third position, so that the height of the first position is driven to rise to the maximum first position height.

[0011] In one or more embodiments of the adjustment system, the first link, the second link, and the third link are arranged in pairs on both sides of the width direction of the adjustment system. The first links on both sides of the width direction are connected by a first synchronizing rod, the second links on both sides of the width direction are connected by a second synchronizing rod, and the third links on both sides of the width direction are connected by a third synchronizing rod.

[0012] In one or more embodiments of the adjustment system, the first driving member is disposed on one side of the width direction, and the second driving member is disposed on the other side of the width direction.

[0013] In one or more embodiments of the adjustment system, the seat cushion frames are arranged in pairs on both sides of the width direction of the adjustment system, the seat cushion frames on both sides of the width direction are connected to the seat basin, and the width of the seat basin is at least the width between the two seat cushion frames.

[0014] A seat according to a second aspect of this application includes a seat cushion, including the adjustment system described in the first aspect; and a backrest rotatably connected to a base frame of the seat cushion.

[0015] In one or more embodiments of the seat, the backrest and the base frame of the seat cushion are connected at a third position; in the first state, the height of the backrest is a first backrest height; in the second state, compared to the first state, the backrest can rotate forward around the third position, causing the height of the backrest to decrease to a second backrest height, so that the backrest is folded up relative to the seat cushion; in the third state, compared to the first state, the backrest can rotate backward around the third position, causing the height of the backrest to decrease to a third backrest height, so that the backrest is unfolded relative to the seat cushion.

[0016] In one or more embodiments of the seat, the base frame is connected to an external slide rail, allowing the base frame to slide relative to the slide rail in the length direction; in the first state and the third state, the position of the base frame in the length direction is locked at a first base frame position; in the second state, the base frame can move forward in the length direction, causing the base frame to move forward to a second base frame position in the length direction.

[0017] In one or more embodiments of the seat, the slide rail is an electric slide rail, and the drive motor of the electric slide rail is located in the middle of the space in the width direction of the adjustment system.

[0018] The beneficial effects of the above embodiments include, but are not limited to, the use of the adjustment system described in the first aspect, which enables the seat to achieve both folding and zero-gravity seat functions at low cost and with a simple structure. Attached Figure Description

[0019] The above and other features, properties, and advantages of this application 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 this application, wherein: Figure 1 This is a structural schematic diagram of a seat according to one embodiment.

[0020] Figure 2 , Figure 3 This is a schematic diagram of the seat adjustment system and slide rail according to one embodiment.

[0021] Figure 4 This is a schematic diagram of the first state of a seat adjustment system according to an embodiment.

[0022] Figure 5 , Figure 6 This is a schematic diagram of the second state of a seat adjustment system according to an embodiment.

[0023] Figure 7 This is a schematic diagram of the third state of a seat adjustment system according to an embodiment.

[0024] Figure label: 1000-Seat, 1001-Seat cushion, 1002-Backrest, 10021-First backrest height, 10022-Second backrest height, 10023-Third backrest height, 1003-Slide rail; 10 - Regulation system, 101 - First state, 102 - Second state, 103 - Third state; 1-Base frame, 11-First connection position, 12-Second connection position, 13-Third connection position, 14-First base frame position, 15-Second base frame position; 2-Seat cushion frame; 3-Sitz bath; 4-Front adjustment part, 41-First link, 42-Second link, 421-First position, 4211-First position height, 4212-Minimum first position height, 4213-Maximum first position height, 422-Second position, 4221-Second position height, 4223-Maximum second position height.

[0025] 5 - Rear adjustment section, 51 - Third link, 511 - Third position, 5111 - Third position height, 5112 - Minimum third position height; 61-First drive component, 62-Second drive component, 63-Third drive component; 71-First synchronizing rod, 72-Second synchronizing rod, 73-Third synchronizing rod. Detailed Implementation

[0026] Reference will now be made in detail to various embodiments of this application, examples of which are shown in the accompanying drawings and described below. Although this application will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit this application to those exemplary embodiments. Rather, this application 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 this application as defined by the appended claims.

[0027] 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 convenience of describing this application 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 this application.

[0028] 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.

[0029] Although the adjustment device disclosed in the embodiments of this application is applicable to automobile seats, it is not limited thereto. For example, it can be applied to other transportation applications, such as heavy vehicles, railway trains, ships, airplanes, etc. It can also be applied to fixed places, such as massage chairs, meeting rooms, auditoriums, cinemas, office seats, etc. As long as the seat can be adjusted by the adjustment system disclosed in the embodiments of this application.

[0030] refer to Figures 1 to 7As shown, in some embodiments, the seat 1000 may include the adjustment system 10 of the embodiments described in detail below, and a backrest 1002, rotatably connected to the base frame 1 of the seat cushion. For example, this rotatable connection can be achieved via an adjuster. The term "recliner" is similar in meaning to common structures in the art; a motor-driven recliner is generally a stepless adjuster, while a high-speed motor should be configured for quick folding. One side of the core component of the recliner is connected to a movable connector, which is connected to the backrest 1002 to drive the backrest 1002 to rotate. The other side is connected to a fixed connector, which is connected to the base frame 1. The meaning of the core component of the recliner is similar to common understanding in the art, namely, the component in the recliner that enables locking and unlocking functions and adjusts the angle. The core component generally includes a movable disc and a fixed disc. The movable disc can be connected to the movable connector, and the fixed disc can be connected to the fixed connector. The core component can be connected with different connectors to form different angle adjusters to suit seats with different structures.

[0031] refer to Figures 4 to 7 As shown, in some embodiments, the backrest 1002 of the seat 1000 is connected to the base frame 1 of the seat cushion at a third position 13. The seat 1000 can have different states corresponding to the first state 101, the second state 102, and the third state 103 of the adjustment system 10.

[0032] like Figure 4 As shown, in the first state 101, the height of the backrest 1002 is the first backrest height 10021. This state can be referred to as the design state of the seat, that is, the structure of the seat 1000 in the general use scenario of the occupant.

[0033] like Figure 5 as well as Figure 6 As shown, in the second state 102, compared to the first state 101, the backrest 1002 can rotate forward around the third position 13, causing the backrest height to decrease to the second backrest height 10022, thus folding the backrest 1002 relative to the seat cushion 1001. This state can be referred to as the seat's folded state, meaning that when the seat 1000 is not in use, the backrest 1002 can be folded back as shown. Figure 5 The seat is folded up to the cushion 1001, which can be referred to as the seat's folded state. In some embodiments, the base frame 1 is connected to an external slide rail 1003, allowing the base frame 1 to slide relative to the slide rail 1003 in the longitudinal direction.

[0034] like Figures 5 to 6As shown, in the second state 102, the base frame 1 can move forward in the length direction, moving to the second base frame position 15. This further frees up the space occupied by the seat 1000 when it is not in use. For example, in a car, when the seat 1000 is not in use, it can be folded down and moved forward, allowing rear passengers to enjoy a better view, see the contents of electronic displays such as the instrument panel screen, and gain more usable space. In the first state 101 and the third state 103, the base frame 1 is locked in the length direction at the first base frame position 14 to ensure the stability of the seat in the design state and in zero-gravity mode.

[0035] refer to Figure 2 as well as Figure 3 As shown, in some embodiments, the slide rail 1003 is an electric slide rail, and the drive motor 63 of the electric slide rail is located in the middle of the space in the width direction of the adjustment system 10, which makes the structure more compact.

[0036] refer to Figure 7 As shown, in the third state 103, compared to the first state 101, the backrest 1002 can rotate backward around the third position 13, so that the height of the backrest is reduced to the third backrest height 10023, so that the backrest 1002 unfolds relative to the seat cushion 1001, enabling the occupant to rest or lie down in the zero gravity mode of the zero gravity seat.

[0037] refer to Figures 1 to 7 As shown, the structure of the adjustment system 10 will be described in detail below.

[0038] An adjustment system 10 includes: a base frame 1, a seat frame 2, a front adjustment part 4, and a rear adjustment part 5.

[0039] The base frame 1 is used for connection to the outside, such as connecting to the slide rail 1003 or directly connecting to the floor of a vehicle or the ground of a fixed location.

[0040] The seat frame 2 is connected to the seat basin 3. The front adjustment part 4 is hinged to the front side of the seat frame 2, and the rear adjustment part 5 is hinged to the rear side of the seat frame 2.

[0041] The regulating system 10 has Figure 4 The first state 101 shown Figure 5 as well as Figure 6 The second state 102 shown, and Figure 7 The third state 103 is shown.

[0042] like Figure 4As shown, in the first state 101, the front adjustment part 4 provides the front side height of the seat cushion frame 2 as the first height, and the rear adjustment part 5 provides the rear side height of the seat cushion frame 2 as the second height. In the first state 101, the height is generally unchanged, but different occupants can adjust the first height and the second height of the first state according to the occupant's body posture and then maintain them.

[0043] In the second state 102, relative to the first state 101, the front adjustment part 4 lowers the front height of the seat cushion frame 2 from the first height to the minimum front height, and the rear adjustment part 5 lowers the rear height of the seat cushion frame 2 from the second height to the minimum rear height.

[0044] In the third state 103, relative to the first state 101, the front adjustment part 4 increases the height of the front side of the seat cushion frame 2 from the first height to the maximum height of the front side, and the rear adjustment part 5 provides the rear side height of the seat cushion frame 2 to be no greater than the second height.

[0045] The beneficial effects of the above embodiments include, but are not limited to, by setting a front adjustment part and a rear adjustment part and hinged to the seat cushion frame on both sides in the length direction, and having different dynamic structures in the first state, second state and third state, the seat can achieve the functions of folding and tilting adjustment with a compact and simple structure. The same adjustment system can meet the needs of folding and zero-gravity seat, and the structure is compact and the cost is low.

[0046] Continue to refer to Figures 1 to 7 Especially Figure 2 as well as Figure 3As shown, in some embodiments, the front adjustment part 4 includes a first link 41 and a second link 42. The first link 41 is connected to a first drive member 61 and is hinged to a first connection position 11 and a second link 42, respectively. The first connection position 11 is located in the base frame 1. The second link 42 is hinged to the front side of the seat frame 2 at a first position 421 and to the first link 41 at a second position 422. In the first state 101, the height of the first position 421 is the first position height 4211, and the height of the second position 422 is the second position height 4221. In the second state 102, relative to the first state 101, the first link 41 can be locked by the first drive member 61 so that the height of the second position 422 is maintained at the second position height 4221, and the second link 42 rotates forward around the second position 422, so that the height of the first position 421 decreases from the first position height to the minimum first position height 4212. In the third state 103, relative to the first state 101, the first connecting rod 41 can be driven by the first driving member 61 to rotate rearward around the first connecting position 11, causing the height of the second position 422 to rise to the maximum second position height 4223, thereby driving the height of the first position 421 to rise to the maximum first position height 4213. The front adjustment part 4 adopts a connecting rod structure, which is simple, stable and reliable, and easy to design and assemble.

[0047] In some embodiments, the rear adjustment unit 5 includes a third link 51, which is connected to a second drive member 62. The third link 51 is hinged to a second connection position 12 and to the rear side of the seat frame 2 at a third position 511. The second connection position 12 is located on the base frame 1. In a first state 101, the height of the third position 511 is a third position height 5111. In a second state 102, relative to the first state 101, the third link 51 can be driven by the second drive member 62 to rotate forward around the second connection position 12, thereby reducing the height of the third position 511 to a minimum third position height 5112. In a third state 103, relative to the first state 101, the third link 51 can be locked by the second drive member 62 to maintain the height of the third position 511 at the third position height 5111, and the seat frame 2 rotates around the third position 511, causing the first position 421 to be raised to a maximum first position height 4213. The rear adjustment unit 5 adopts a link structure, which is simple, stable, reliable, and easy to design and assemble.

[0048] The motion transmission path of the regulating system 10 is as follows.

[0049] In the second state, the second drive member 62 drives the third link 51 to rotate. The third link 51 rotates forward around the second connection position 12, so that the height of the third position 511 is reduced to the minimum third position height 5112. The third link 51 drives the seat frame 2 to move. Since the first link 41 is locked by the first drive member 61, it drives the second link 42 to rotate forward around the second position 422, so that the height of the first position 421 is reduced from the first position height 4211 to the minimum first position height 4212.

[0050] In the third state, the first drive member 61 drives the first link 41 to rotate rearward around the first connection position 11, causing the height of the second position 422 to rise to the maximum second position height 4223, thereby causing the second link 42 and the seat frame 2 to move. Since the third link 51 is locked by the second drive member 62, the height of the third position 511 is maintained at the third position height 5111, while the seat frame 2 rotates around the first position 421, causing the second link 42 to rise from the height of the first position 421 to the maximum first position height 4213.

[0051] It can be understood that the second and third states mentioned above can be the endpoints of the adjustment stroke of the adjustment unit of the adjustment system, and the adjustment system can also be in an intermediate state between the first and second states, or between the first and third states.

[0052] It is understood that the structure for achieving the functions of hinge and height adjustment is not limited to the linkage structure described above. For example, it can also be an arc-shaped sliding groove. The number of linkages is also not limited to the front adjustment part 4 including the first linkage and the second linkage, and the rear adjustment part 5 including the third linkage, as described above. There can also be more linkages, and these are not limited to this. The beneficial effect of adopting the above embodiments is that the structure is simple, stable and reliable, and easy to design and assemble.

[0053] The first driving component 61 and the second driving component 62 mentioned above can be as follows: Figure 2 as well as Figure 3 The first driving member 61 shown is located on one side of the width direction, and the second driving member 62 is located on the other side of the width direction. They are respectively connected to the front adjustment part 4 and the rear adjustment part 5. The structure is compact and the transmission is simple, which makes the adjustment system simple. Alternatively, the same driving member can be connected to the front adjustment part 4 and the rear adjustment part 5 through different transmission mechanisms, which further compacts the structure, but requires a more complex transmission mechanism.

[0054] The first driving component 61, the second driving component 62, and the third driving component 63 can be motors. The types of motors can be brushed motors, brushless motors, etc., and the term "motor" here 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" or "screw motor," etc., without limitation. Additionally, the driving component can also be a cylinder, hydraulic cylinder, electric cylinder, etc. Similarly, the meaning of the third driving component 63 is similar to that of the first driving component 61 and the second driving component 62, and will not be repeated here.

[0055] Continue to refer to Figure 2 as well as Figure 3 As shown, in some embodiments, the first connecting rod 41, the second connecting rod 42, and the third connecting rod 51 are arranged in pairs on both sides of the width direction of the adjustment system 10. The first connecting rods 41 on both sides of the width direction are connected by a first synchronizing rod 71, the second connecting rods 42 on both sides of the width direction are connected by a second synchronizing rod 72, and the third connecting rods 51 on both sides of the width direction are connected by a third synchronizing rod 73. The structure in which the connecting rods are arranged on both sides of the width direction and connected by synchronizing rods is relatively stable and reliable.

[0056] Continue to refer to Figure 2 as well as Figure 3 As shown, the seat cushion frames 2 are arranged in pairs on both sides of the width direction of the adjustment system 10. The seat cushion frames 2 on both sides of the width direction are connected to the seat basin 3. The width of the seat basin 3 is at least the width between the two seat cushion frames 2, so that the seat basin 3 is wider and provides a more stable and comfortable user experience.

[0057] In summary, the beneficial effects of the adjustment system and seat described in the above embodiments include, but are not limited to, the following: by setting a front adjustment part and a rear adjustment part, and hinged to both the seat cushion frame on both sides in the length direction, and having different dynamic structures in the first state, second state, and third state, the seat can achieve the functions of folding and tilting adjustment with a compact and simple structure. The same adjustment system can meet the needs of folding and zero-gravity seats. The structure is compact and the cost is low, enabling the seat to achieve the functions of folding and zero-gravity seats at low cost and with a simple structure.

[0058] While this application discloses preferred embodiments as described above, it is not intended to limit the scope of this application. Any changes and modifications can be made by those skilled in the art without departing from the spirit and scope of this application. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the content of the technical solution of this application shall fall within the protection scope defined by the claims of this application.

Claims

1. A regulating system (10), characterized in that, include: The base frame (1) is used for connection with the outside; A seat frame (2) is connected to a seat basin (3); The front adjustment part (4) is hinged to the front side of the seat frame (2); The rear adjustment part (5) is hinged to the rear side of the seat frame (2); The regulating system (10) has a first state (101), a second state (102), and a third state (103); In the first state (101), the front adjustment part (4) provides the front side height of the seat cushion frame (2) as a first height, and the rear adjustment part (5) provides the rear side height of the seat cushion frame (2) as a second height; In the second state (102), relative to the first state (101), the front adjustment part (4) provides the front height of the seat cushion frame (2) to decrease from the first height to the front minimum height, and the rear adjustment part (5) provides the rear height of the seat cushion frame (2) to decrease from the second height to the rear minimum height; In the third state (103), relative to the first state (101), the front adjustment part (4) provides the front height of the seat frame (2) to increase from the first height to the maximum front height, and the rear adjustment part (5) provides the rear height of the seat frame (2) to be no greater than the second height.

2. The regulating system (10) as described in claim 1, characterized in that, The front adjustment part (4) includes a first connecting rod (41) and a second connecting rod (42). The first connecting rod (41) is connected to the first driving member (61), and the first connecting rod (41) is hinged to the first connecting position (11) and the second connecting rod (42) respectively. The first connecting position (11) is located in the base frame (1). The second connecting rod (42) is hinged to the front side of the seat cushion frame (2) at the first position (421), and the second connecting rod (42) is hinged to the first connecting rod (41) at the second position (422). In the first state (101), the height of the first position (421) is the first position height (4211), and the height of the second position (422) is the second position height (4221). In the second state (102), relative to the first state (101), the first link (41) can be locked by the first drive member (61) so that the height of the second position (422) is maintained at the second position height (4221), and the second link (42) rotates forward about the second position (422) so that the height of the first position (421) is reduced from the first position height to the minimum first position height (4212). In the third state (103), relative to the first state (101), the first link (41) can be driven by the first drive member (61) to rotate rearward around the first connection position (11), so that the height of the second position (422) rises to the maximum second position height (4223), thereby driving the height of the first position (421) to rise to the maximum first position height (4213).

3. The regulating system (10) as described in claim 2, characterized in that, The rear adjustment part (5) includes a third link (51), which is connected to the second drive member (62). The third link (51) is hinged to the second connection position (12) and to the rear side of the seat frame (2) at the third position (511). The second connection position (12) is located in the base frame (1). In the first state (101), the height of the third position (511) is the height of the third position (5111). In the second state (102), relative to the first state (101), the third link (51) can be driven by the second drive member (62) to rotate forward about the second connection position (12), so that the height of the third position (511) is reduced to the minimum third position height (5112). In the third state (103), relative to the first state (101), the third link (51) can be locked by the second drive member (62) so that the height of the third position (511) is maintained at the third position height (5111), and the seat frame (2) rotates around the third position (511) so that the first position (421) is driven to rise to the maximum first position height (4213).

4. The regulating system (10) as described in claim 3, characterized in that, The first link (41), the second link (42), and the third link (51) are arranged in pairs on both sides of the width direction of the adjustment system (10). The first link (41) on both sides of the width direction is connected by the first synchronizing rod (71), the second link (42) on both sides of the width direction is connected by the second synchronizing rod (72), and the third link (51) on both sides of the width direction is connected by the third synchronizing rod (73).

5. The regulating system (10) as described in claim 4, characterized in that, The first driving member (61) is disposed on one side of the width direction, and the second driving member (62) is disposed on the other side of the width direction.

6. The regulating system (10) as described in claim 4, characterized in that, The seat cushion frames (2) are arranged in pairs on both sides of the adjustment system (10) in the width direction. The seat cushion frames (2) on both sides of the width direction are connected to the seat basin (3). The width of the seat basin (3) is at least the width between the two seat cushion frames (2).

7. A seat (1000), characterized in that, include: The seat cushion (1001) includes the adjustment system (10) as described in any one of claims 1-6. as well as The backrest (1002) is rotatably connected to the base frame (1) of the seat cushion.

8. The seat (1000) as claimed in claim 7, characterized in that, The backrest (1002) is connected to the base frame (1) of the seat cushion at the third position (13); In the first state (101), the height of the backrest (1002) is the first backrest height (10021). In the second state (102), compared to the first state (101), the backrest (1002) can rotate forward around the third position (13) so that the height of the backrest decreases to the second backrest height (10022) so that the backrest (1002) is folded relative to the seat cushion (1001); In the third state (103), compared to the first state (101), the backrest (1002) can rotate rearward around the third position (13) so that the height of the backrest decreases to the third backrest height (10023), so that the backrest (1002) unfolds relative to the seat cushion (1001).

9. The seat (1000) as claimed in claim 7, characterized in that, The base frame (1) is used to connect with the external slide rail (1003) so that the base frame (1) can slide relative to the slide rail (1003) in the length direction; In the first state (101) and the third state (103), the position of the base frame (1) in the length direction is locked as the first base frame position (14). In the second state (102), the base frame (1) is able to move forward in the length direction, so that the base frame (1) moves forward in the length direction to the second base frame position (15).

10. The seat (1000) as claimed in claim 9, characterized in that, The slide rail (1003) is an electric slide rail, and the drive motor (63) of the electric slide rail is located in the middle of the space in the width direction of the adjustment system (10).

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