A seat cushion adjustment device and a vehicle

Abstract

This invention provides a seat cushion adjustment device and a vehicle, relating to the field of vehicle seat technology. In this invention, applying force to the operating component causes the sliding part of the locking component to slide along the guide groove of the guide component towards the rear of the seat, disengaging the locking part of the locking component from the latch of the bracket. This allows the seat cushion frame to switch from a locked state to an unlocked state, enabling the seat cushion frame to move downwards around its first part, thereby lowering the seat cushion. This technical solution uses only the operating component to unlock the seat cushion frame. After unlocking, the weight of the seat cushion frame allows it to lower, eliminating the need for adjustment in conjunction with the seat backrest, making operation convenient and effortless. Furthermore, this technical solution only requires the seat cushion adjustment device to be installed on the seat cushion frame to achieve seat cushion adjustment, making it highly applicable.

Description

Technical Field

[0001] This invention relates to the field of vehicle seat technology, and in particular to a seat cushion adjustment device and a vehicle. Background Technology

[0002] As society develops, users have increasingly higher expectations for vehicles, viewing them not just as transportation tools but also as mobile homes that integrate work and entertainment. Therefore, the demand for rear seatbacks to fold flat is growing. However, when large items need to be stored in the trunk or for short trips for rest, the seat design and vehicle structure often prevent the rear seatbacks from folding flat due to a step difference and angle between the seatbacks and the seat cushion. In such cases, the seat cushion needs to be lowered to achieve a flat seatback.

[0003] The current method of lowering the seat cushion in vehicles requires the use of a seat backrest linked to the seat cushion frame, which is heavy, inconvenient and laborious to adjust, and requires the left and right sides of the rear seats to use independent frames, resulting in poor versatility, not being suitable for the development trend of electric vehicles, and having high costs. Summary of the Invention

[0004] The first objective of this invention is to provide a seat cushion adjustment device for a seat, thereby solving the technical problem that seat cushion adjustment is inconvenient in the prior art.

[0005] A second aspect of the present invention is to provide a vehicle having the above-described seat adjustment device.

[0006] According to a first aspect of the present invention, the present invention provides a seat cushion adjustment device for a seat, the seat including a seat cushion frame having a first portion near the rear of the seat and rotatably connected to a vehicle floor and a second portion near the front of the seat; the seat cushion adjustment device includes:

[0007] A bracket, disposed at the second part and fixedly connected to the vehicle floor, the bracket having a locking mechanism;

[0008] A guide member is connected to the seat cushion frame and has a guide groove extending along the front-rear direction of the seat;

[0009] A locking member is rotatably connected to the bracket, the locking member having a sliding part connected to the guide groove and a locking part that engages with the latch;

[0010] An operating element, connected to the locking element, is used to drive the sliding part to slide along the guide groove toward the rear of the seat when a force is applied, so that the locking part disengages from the latch, thereby switching the seat cushion frame from a locked state to an unlocked state, allowing the seat cushion frame to move downward around the first part.

[0011] Optionally, the bracket further includes:

[0012] The first fastener has a flat portion and a vertical portion, the flat portion being connected to the vehicle floor, the vertical portion being formed by extending from the end of the flat portion toward the roof, and the latch being connected to the top of the vertical portion.

[0013] Optionally, the locking element includes:

[0014] Two first mounting plates arranged opposite each other are respectively disposed on opposite sides of the vertical part and are rotatably connected to the vertical part, and each first mounting plate is provided with the sliding part;

[0015] A second mounting plate is disposed between and connected to the two first mounting plates, and the latch is mounted on the second mounting plate.

[0016] Optionally, the latch is U-shaped and has a snap-fit ​​portion and two oppositely arranged mounting portions. The two ends of the snap-fit ​​portion are respectively connected to the two mounting portions, and the ends of the two mounting portions away from the snap-fit ​​portion are connected to the vertical portion.

[0017] The locking part of the locking member is hook-shaped to engage with the snap-fit ​​part.

[0018] Optionally, the guide includes two third mounting plates arranged corresponding to the two first mounting plates, each third mounting plate having a guide groove corresponding to the sliding portion; the seat cushion adjustment device further includes:

[0019] The pivot is configured to pass through the sliding portions of the two first mounting plates and the guide grooves of the two third mounting plates to allow the sliding portions to slide along the guide grooves.

[0020] Optionally, the operating element includes:

[0021] A fixed shaft is connected to the locking element;

[0022] The handheld part is connected to the fixed shaft and is configured to provide a pulling force toward the front of the seat to the fixed shaft when a force is applied, so as to drive the sliding part to slide along the guide groove toward the rear of the seat.

[0023] Optionally, it also includes:

[0024] The second fastener is rotatably connected to the first part of the seat cushion frame and fixedly connected to the vehicle floor.

[0025] Optionally, the seat cushion adjustment device is configured such that when the seat cushion frame is subjected to an upward force, the sliding part slides along the guide groove toward the front of the seat until the locking part locks with the latch, thereby switching the seat cushion frame from an unlocked state to a locked state.

[0026] According to a second aspect of the present invention, the present invention also provides a vehicle including the above-described seat adjustment device.

[0027] Optionally, the system includes a seat comprising two of the aforementioned seat cushion adjustment devices, which are spaced apart and arranged at a second portion of the seat cushion frame and share a common operating element.

[0028] In this invention, applying force to the operating component causes the sliding part of the locking component to slide along the guide groove of the guide component towards the rear of the seat. This disengages the locking part of the locking component from the latch of the bracket, thereby switching the seat cushion frame from a locked state to an unlocked state. This allows the seat cushion frame to move downwards around its first part, thus lowering the seat cushion. This technical solution unlocks the seat cushion frame using only the operating component. After unlocking, the seat cushion frame lowers using its own weight, eliminating the need for adjustment of the seat backrest. The operation is convenient and effortless. Furthermore, this technical solution only requires installing the seat cushion adjustment device on the seat cushion frame to adjust the seat cushion, making it highly versatile.

[0029] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0030] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0031] Figure 1 This is a schematic installation diagram of a seat cushion adjustment device and a seat cushion frame at an angle according to an embodiment of the present invention;

[0032] Figure 2 This is a schematic installation diagram of the seat cushion adjustment device and the seat cushion frame from another angle according to an embodiment of the present invention;

[0033] Figure 3 yes Figure 1A schematic enlarged view of the locking part and the buckle engaging in the seat adjustment device shown;

[0034] Figure 4 yes Figure 1 A schematic enlarged view of the locking part disengaging from the buckle in the seat adjustment device shown;

[0035] Figure 5 yes Figure 1 The diagram shows a schematic structural representation of the seat cushion frame in a locked state.

[0036] Figure 6 yes Figure 1 The diagram shows a schematic of the seat cushion frame in the unlocked state.

[0037] Figure label:

[0038] 100-Seat cushion adjustment device, 200-Seat cushion frame, 210-First part, 220-Second part, 230-Third part, 240-Fourth part, 10-Bracket, 20-Guide component, 30-Locking component, 40-Operating component, 50-Second fixing component, 60-Rotating shaft, 11-Lock, 12-First fixing component, 111-Mounting part, 112-Snap-fitting part, 121-Straight part, 122-Vertical part, 21-Guide groove, 22-Third mounting plate, 31-Locking part, 32-Sliding part, 33-First connecting part, 34-Second connecting part, 35-First mounting plate, 36-Second mounting plate, 41-Fixed shaft, 42-Handheld part. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0041] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically stated, this indicates that other features are not excluded and may be further included.

[0042] Unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. "Below" the second feature can be directly below or diagonally below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature.

[0044] Unless otherwise specified, all terms (including technical and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0045] Figure 1 This is a schematic installation diagram of the seat cushion adjustment device 100 and the seat cushion frame 200 at an angle according to an embodiment of the present invention. Figure 2 This is a schematic installation diagram of the seat cushion adjustment device 100 and the seat cushion frame 200 from another angle according to an embodiment of the present invention. Figure 3 yes Figure 1 A schematic enlarged view of the locking part 31 engaging with the latch 11 in the seat adjustment device 100 shown. Figure 4 yes Figure 1 A schematic enlarged partial view of the seat adjustment device 100 showing the locking part 31 disengaging from the latch 11. Figure 5 yes Figure 1 The diagram shown is a schematic representation of the seat cushion frame 200 in the locked state. Figure 6 yes Figure 1 The diagram shows a schematic structural representation of the seat cushion frame 200 in the unlocked state. Figures 1 to 6 As shown, in one specific embodiment, the seat includes a seat cushion frame 200, which has a first portion 210 near the rear of the seat and rotatably connected to the vehicle floor, and a second portion 220 near the front of the seat. The seat cushion adjustment device 100 includes a bracket 10, a guide 20, a locking member 30, and an operating member 40. The bracket 10 is disposed at the second portion 220 and fixedly connected to the vehicle floor, and has a latch 11. The guide 20 is connected to the seat cushion frame 200 and has a guide groove 21 extending along the fore-and-aft direction of the seat. The locking member 30 is rotatably connected to the bracket 10 and has a sliding portion 32 connected to the guide groove 21 and a locking portion 31 cooperating with the latch 11. The operating member 40 is connected to the locking member 30 and is used to drive the sliding part 32 to slide along the guide groove 21 toward the rear of the seat when a force is applied, so that the locking part 31 disengages from the latch 11, thereby switching the seat cushion frame 200 from the locked state to the unlocked state, allowing the seat cushion frame 200 to move downward around the first part 210.

[0046] In this embodiment, applying force to the operating member 40 causes the sliding part 32 of the locking member 30 to slide along the guide groove 21 of the guide member 20 toward the rear of the seat, thereby disengaging the locking part 31 from the latch 11. This allows the seat cushion frame 200 to switch from a locked state to an unlocked state, enabling the seat cushion frame 200 to move downwards around its first part 210, thus lowering the seat cushion. This technical solution uses the operating member 40 to unlock the seat cushion frame 200. After unlocking, the seat cushion frame 200 lowers using its own weight, eliminating the need for adjustment of the seat back, making the operation convenient and effortless. Furthermore, this technical solution only requires the seat cushion adjustment device 100 to be installed on the seat cushion frame 200 to adjust the seat cushion, making it highly versatile. After lowering the seat cushion, the seat back can be laid flat forward.

[0047] In this embodiment, the seat cushion adjustment device 100 is configured such that when the seat cushion frame 200 is subjected to an upward force, the sliding part 32 slides along the guide groove 21 toward the front of the seat until the locking part 31 locks with the latch 11, thereby switching the seat cushion frame 200 from the unlocked state to the locked state. That is to say, when it is necessary to lock the seat cushion frame 200, the seat cushion can be lifted directly upwards, which is relatively simple to operate. The first part 210 of the seat cushion frame 200 will rotate relative to the second fixing member 50 until the locking part 31 locks with the latch 11, at which point the seat cushion frame 200 moves from the lowest position to the highest position.

[0048] like Figure 2 As shown, the seat cushion frame 200 includes a first part 210, a second part 220, a third part 230, and a fourth part 240. The fourth part 240, the third part 230, the second part 220, and the first part 210 are arranged sequentially at intervals along the front-back direction of the seat and are arranged in parallel. In this embodiment, the first part 210, the second part 220, the third part 230, and the fourth part 240 are all tubular.

[0049] In this embodiment, the bracket 10 further includes a first fixing member 12, which has a flat portion 121 and a vertical portion 122. The flat portion 121 is connected to the vehicle floor, and the vertical portion 122 extends from the end of the flat portion 121 toward the roof. A latch 11 is connected to the top of the vertical portion 122. The flat portion 121 has at least one mounting hole for connection to the vehicle floor by bolts. The vertical portion 122 has reinforcing ribs to improve the structural strength of the first fixing member 12 and prevent deformation of the first fixing member 12.

[0050] In this embodiment, the locking member 30 includes two opposingly arranged first mounting plates 35 and a second mounting plate 36. The two first mounting plates 35 are respectively disposed on opposite sides of the vertical portion 122 and rotatably connected to the vertical portion 122. Each first mounting plate 35 is provided with a sliding portion 32. The second mounting plate 36 is disposed between the two first mounting plates 35 and connected to the two first mounting plates 35. The latch 11 is mounted on the second mounting plate 36. It can be understood that the vertical portion 122 is located between the two first mounting plates 35. The first mounting plate 35 has a first connecting portion 33, which is pivotally connected to the vertical portion 122.

[0051] In this embodiment, the latch 11 is U-shaped and has a snap-fit ​​portion 112 and two oppositely arranged mounting portions 111. Both ends of the snap-fit ​​portion 112 are connected to the two mounting portions 111 respectively and can cooperate with the locking portion 31. The ends of the two mounting portions 111 away from the snap-fit ​​portion 112 are connected to the vertical portion 122. The ends of the mounting portions 111 away from the snap-fit ​​portion 112 are bent to be connected to the vertical portion 122 of the first fixing member 12 by welding. In other embodiments, the latch 11 can also be connected to the vertical portion 122 of the first fixing member 12 in other ways.

[0052] In this embodiment, the locking portion 31 of the locking member 30 is hook-shaped to engage with the snap-fit ​​portion 112 of the latch 11. In other embodiments, the locking portion 31 of the locking member 30 and the latch 11 can also be connected or separated in other ways.

[0053] In this embodiment, the guide member 20 includes two third mounting plates 22 respectively arranged corresponding to the two first mounting plates 35, each third mounting plate 22 having a guide groove 21 corresponding to the sliding part 32. The seat cushion adjustment device 100 also includes a rotating shaft 60, which is configured to pass through the sliding parts 32 of the two first mounting plates 35 and the guide grooves 21 of the two third mounting plates 22, so as to allow the sliding parts 32 to slide along the guide grooves 21, that is, to allow the locking member 30 to slide relative to the guide member 20. Here, the guide member 20 and the seat cushion frame 200 are connected by welding. In other embodiments, the guide member 20 and the seat cushion frame 200 can also be connected by other means.

[0054] In this embodiment, the extension length of the guide groove 21 can be designed according to specific design requirements. Specifically, it can be designed according to the degree of seat cushion sinking. The longer the extension length of the guide groove 21, the greater the degree of seat cushion sinking, and the shorter the extension length of the guide groove 21, the smaller the degree of seat cushion sinking.

[0055] In this embodiment, the operating member 40 includes a fixed shaft 41 and a handle 42. The fixed shaft 41 is connected to the locking member 30, and the handle 42 is connected to the fixed shaft 41. The handle 42 is configured to provide a pulling force to the fixed shaft 41 towards the front of the seat when a force is applied, so as to drive the sliding part 32 to slide along the guide groove 21 towards the rear of the seat. See also Figure 1 and Figure 2 The handle 42 extends from the fixed shaft 41 towards the upper front of the seat, then horizontally towards the front of the seat, and finally towards the lower part of the seat. When it is necessary to unlock the seat cushion frame 200, simply pull down the end of the handle 42 to cause the fixed shaft 41 to rotate the locking member 30 and slide along the guide groove 21. Here, the handle 42 can be a brake cable, a pull strap, or a rope. The first mounting plate 35 of the locking member 30 is also provided with a second connecting part 34, which is fixedly connected to the fixed shaft 41.

[0056] In this embodiment, the seat cushion adjustment device 100 further includes a second fixing member 50, which is rotatably connected to the first part 210 of the seat cushion frame 200 and fixedly connected to the vehicle floor. Here, the second fixing member 50 is rotatably connected to the first part 210 of the seat cushion frame 200 via a self-lubricating sleeve.

[0057] This embodiment also provides a vehicle including the aforementioned seat adjustment device 100. Details regarding the seat adjustment device 100 will not be provided here.

[0058] In this embodiment, the vehicle includes a seat, and the seat includes two seat cushion adjustment devices 100. The two seat cushion adjustment devices 100 are spaced apart and arranged at the second part 220 of the seat cushion frame 200, and share a common operating element 40. See details below. Figure 1 and Figure 2 This can be understood as meaning that operating one operating component 40 can simultaneously drive two locking components 30 to rotate, making operation simpler, reducing the number of parts, and saving costs.

[0059] This embodiment adds a seat cushion adjustment device 100 to the original rear seat cushion frame 200 of the vehicle. The seat cushion frame 200 is locked and unlocked by the locking part 31 of the locking member 30 and the latch 11 of the bracket 10. The first part 210 of the seat cushion frame 200 can rotate around the second fixing member 50. After the locking part 31 is unlocked from the latch 11, the seat cushion frame 200 moves downwards under gravity, and is limited by the pivot 60 and the guide member 20, thereby causing the seat cushion to move downwards, allowing the seat back to be laid flat forward. This seat cushion adjustment device 100 can be used as a modular structure in various vehicle models.

[0060] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. A seat cushion adjustment device for a chair, characterized in that, The seat includes a seat cushion frame having a first portion near the rear of the seat and rotatably connected to the vehicle floor, and a second portion near the front of the seat. The seat cushion adjustment device includes: A bracket, disposed at the second part and fixedly connected to the vehicle floor, the bracket having a locking mechanism; A guide member is connected to the seat cushion frame and has a guide groove extending along the front-rear direction of the seat; A locking member is rotatably connected to the bracket, the locking member having a sliding part connected to the guide groove and a locking part that engages with the latch; An operating element, connected to the locking element, is used to drive the sliding part to slide along the guide groove toward the rear of the seat when a force is applied, so that the locking part disengages from the latch, thereby switching the seat cushion frame from a locked state to an unlocked state, allowing the seat cushion frame to move downward around the first part.

2. The seat cushion adjustment device according to claim 1, characterized in that, The support also includes: The first fastener has a flat portion and a vertical portion, the flat portion being connected to the vehicle floor, the vertical portion being formed by extending from the end of the flat portion toward the roof, and the latch being connected to the top of the vertical portion.

3. The seat cushion adjustment device according to claim 2, characterized in that, The locking element includes: Two first mounting plates arranged opposite each other are respectively disposed on opposite sides of the vertical part and are rotatably connected to the vertical part, and each first mounting plate is provided with the sliding part; The second mounting plate is disposed between the two first mounting plates and connected to the two first mounting plates, and the locking part is mounted on the second mounting plate.

4. The seat cushion adjustment device according to claim 3, characterized in that, The latch is U-shaped and has a snap-fit ​​part and two mounting parts arranged opposite to each other. The two ends of the snap-fit ​​part are respectively connected to the two mounting parts, and the ends of the two mounting parts away from the snap-fit ​​part are connected to the vertical part. The locking part of the locking member is hook-shaped to engage with the snap-fit ​​part.

5. The seat cushion adjustment device according to claim 3, characterized in that, The guide member includes two third mounting plates arranged corresponding to the two first mounting plates, each of the third mounting plates being provided with a guide groove corresponding to the sliding portion; the seat cushion adjustment device further includes: The pivot is configured to pass through the sliding portions of the two first mounting plates and the guide grooves of the two third mounting plates to allow the sliding portions to slide along the guide grooves.

6. The seat cushion adjusting device according to any one of claims 1-5, characterized in that, The operating element includes: A fixed shaft is connected to the locking element; The handheld part is connected to the fixed shaft and is configured to provide a pulling force toward the front of the seat to the fixed shaft when a force is applied, so as to drive the sliding part to slide along the guide groove toward the rear of the seat.

7. The seat cushion adjusting device according to any one of claims 1-5, characterized in that, Also includes: The second fastener is rotatably connected to the first part of the seat cushion frame and fixedly connected to the vehicle floor.

8. The seat cushion adjusting device according to any one of claims 1-5, characterized in that, The seat cushion adjustment device is configured such that when the seat cushion frame is subjected to an upward force, the sliding part slides along the guide groove toward the front of the seat until the locking part locks with the latch, thereby switching the seat cushion frame from the unlocked state to the locked state.

9. A vehicle, characterized in that, Includes the seat adjustment device as described in any one of claims 1-8.

10. The vehicle according to claim 9, characterized in that, The device includes a seat, which includes two seat cushion adjustment devices that are spaced apart and located at a second part of the seat cushion frame and share a common operating element.

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