Automobile seat with height adjusting function

Abstract

The utility model relates to the technical field of automobile seats, and discloses an automobile seat with a height adjusting function. The seat cushion assembly is movably arranged on the base, the front connecting rod is arranged at the front end of the seat cushion assembly, the upper end of the front connecting rod is rotatably connected with the seat cushion assembly, and the lower end of the front connecting rod is movably arranged on the base; the rear connecting rod is arranged at the rear end of the cushion assembly, the upper end of the rear connecting rod is rotatably connected with the cushion assembly, and the lower end of the rear connecting rod is rotatably connected with the base; one end of the height adjustment driving part is rotatably connected with the cushion assembly, the other end of the height adjustment driving part is rotatably connected with the base, and the height adjustment driving part can do telescopic motion to adjust the position of the cushion assembly in a lifting mode. Compared with the prior art, the automobile seat with the height adjustment function has the advantages that when the height adjustment is carried out, the height adjustment driving piece cannot swing along with swinging of the rear connecting rod, the foot placing space of passengers in the back row can be effectively prevented from being occupied by the height adjustment driving piece, and the automobile seat is better in stability, simple in structure and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to a high-profile automotive seat. Background Technology

[0002] Many car seats need to have height adjustment functions. For example, the driver's seat needs to adjust the height of the seat cushion to adjust the position of the passenger's legs so that the passenger can easily press the brake or accelerator / electric pedals.

[0003] Many existing height-adjustable car seats use a four-bar linkage. The front end of the seat cushion assembly is hinged to the base via a front link, and the rear end is hinged to the base via a rear link. The base is equipped with a height adjustment drive (such as a lead screw motor), which is connected to the rear link. The extension and retraction of the height adjustment drive causes the rear link to rotate, which in turn drives the four-bar linkage, causing the seat cushion assembly to rise and fall. However, since the height adjustment drive is connected to the rear link, it swings with the swing of the rear link. When it swings to the rear end of the seat cushion, it can easily affect the legroom for rear passengers. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a car seat with a simple structure that does not affect the legroom of the rear passengers.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a car seat with a high profile, comprising:

[0006] Base;

[0007] The seat cushion assembly comprises a front link and a rear link. The seat cushion assembly is movably mounted on the base. The front link is located at the front end of the seat cushion assembly, and its upper end is rotatably connected to the seat cushion assembly, while its lower end is movably mounted on the base. The rear link is located at the rear end of the seat cushion assembly, and its upper end is rotatably connected to the seat cushion assembly, while its lower end is rotatably connected to the base.

[0008] A high-adjustment drive component is provided, one end of which is rotatably connected to the seat cushion assembly and the other end of which is rotatably connected to the base. The high-adjustment drive component is also telescopic, which adjusts the position of the seat cushion assembly by raising and lowering it.

[0009] Furthermore, the base has a downwardly extending connecting bracket on its side, and the high-adjustment drive is rotatably connected to the connecting bracket.

[0010] Furthermore, the high-adjustment drive is configured as a lead screw motor, which is located near the front end of the seat assembly, and the output lead screw of the lead screw motor is provided with a first lead screw sleeve that can telescopically move relative to the output lead screw;

[0011] The end of the first lead screw sleeve away from the lead screw is rotatably connected to the connecting bracket.

[0012] Furthermore, the base includes a front seat and a rear seat, the lower end of the front connecting rod is movably disposed on the front seat, the lower end of the rear connecting rod is rotatably connected to the rear seat, and the connecting bracket is disposed on the rear seat.

[0013] Furthermore, a zero-gravity adjustment motor and a zero-gravity adjustment linkage are provided on the base near the front end of the seat assembly. The zero-gravity adjustment linkage is rotatably mounted on the base and rotatably connected to the zero-gravity adjustment motor. The lower end of the front linkage is hinged to the zero-gravity adjustment linkage.

[0014] The zero-gravity adjustment motor is configured as a lead screw motor, and a second lead screw sleeve is provided on its output lead screw, the second lead screw sleeve being rotatably connected to the base.

[0015] Furthermore, when adjusting to a high position, the zero-gravity adjustment motor restricts the hinge point between the front linkage and the zero-gravity adjustment linkage to the base.

[0016] The front link rotates relative to the hinge point.

[0017] Furthermore, the base is provided with an upward-facing limiting groove;

[0018] When adjusting to a high position, the hinge point between the front link and the zero-gravity adjustment link is confined within the limiting groove.

[0019] Furthermore, a motor bracket is provided on the zero-gravity adjustment linkage, and the zero-gravity adjustment motor is mounted on the motor bracket and rotatably connected to the motor bracket.

[0020] Furthermore, it also includes a backrest, which is rotatably disposed at the rear end of the seat cushion assembly, and an angle adjuster is provided between the backrest and the seat cushion assembly, the angle adjuster being able to drive the backrest to tilt.

[0021] Furthermore, the bottom of the car seat is provided with an electric slide rail, which includes a lower slide rail and an upper slide rail slidably disposed on the lower slide rail. The base is disposed on the upper slide rail and is fixedly connected to the upper slide rail.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] In this invention, one end of the high-adjustment drive component is rotatably connected to the seat cushion assembly, and the other end of the high-adjustment drive component is rotatably connected to the base, but not connected to the rear linkage. When adjusting the height, the high-adjustment drive component will not swing with the swing of the rear linkage, which can effectively prevent it from encroaching on the legroom of the rear passengers, and its stability is better.

[0024] In this invention, the car seat not only features a height adjustment function but also integrates a zero-gravity adjustment function. During zero-gravity adjustment, the zero-gravity adjustment motor drives the zero-gravity adjustment linkage to rotate, which in turn drives the front linkage to rotate, raising the front end of the seat cushion assembly and switching the car seat to zero-gravity mode. Compared to existing car seats that integrate both zero-gravity and height adjustment functions, its overall structure is simpler and its cost is lower.

[0025] In this invention, a limiting groove with an upward opening is provided on the base. When the car seat is adjusted to a higher position, the zero-gravity adjustment motor plays a locking role, which restricts the hinge point between the front linkage and the zero-gravity adjustment linkage in the limiting groove, forming a four-bar linkage mechanism, which ensures the stability of movement when the seat is adjusted to a higher position. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of the car seat of this utility model in its designed position.

[0027] Figure 2 for Figure 1 A schematic diagram of the structure after removing the backrest and the seat adjuster;

[0028] Figure 3 for Figure 2 Another structural diagram from another perspective;

[0029] Figure 4 for Figure 2 Another structural diagram from a different perspective;

[0030] Figure 5 A structural diagram of the base, height adjustment mechanism, and zero-gravity adjustment mechanism;

[0031] Figure 6 for Figure 5 A structural diagram from another perspective;

[0032] Figure 7 This is a schematic diagram of the assembly of the zero-gravity adjustment linkage and the front seat.

[0033] In the picture:

[0034] 100. Base; 10. Connecting bracket; 11. Front seat; 12. Rear seat; 1. Limiting groove;

[0035] 200. Seat Cushion Assembly;

[0036] 300, front linkage;

[0037] 400, rear linkage;

[0038] 500, High-adjustment drive component; 50, First lead screw sleeve;

[0039] 600. Zero-gravity adjustable motor; 60. Second lead screw sleeve;

[0040] 700. Zero-gravity adjustment linkage; 70. Motor bracket;

[0041] 800. Backrest; 80. Angle adjuster;

[0042] 900, Electric slide rail; 90, Upper slide rail; 91, Lower slide rail. Detailed Implementation

[0043] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0048] like Figures 1-7 As shown, the car seat in this embodiment features a zero-gravity adjustment function and a seat cushion height adjustment function. When the car seat is in zero-gravity mode, it can simulate the weightlessness experienced by astronauts in space, allowing passengers to recline on the seat and feel close to a zero-gravity state. This promotes relaxation, improves comfort, ensures sufficient rest, and enhances the overall experience. The seat cushion height can be adjusted to suit passengers of different heights and body types, further improving comfort.

[0049] The car seat with height adjustment in this embodiment mainly includes: a base 100, a seat cushion assembly 200, a front link 300, a rear link 400, a height adjustment drive component 500, a zero-gravity adjustment motor 600, a zero-gravity adjustment linkage 700, a backrest 800, and an electric slide rail 900. In the seat cushion assembly 200, the front link 300, and the rear link 400, the seat cushion assembly 200 is movably mounted on the base 100. The front link 300 is located at the front end of the seat cushion assembly 200, and a front link 300 is provided on each side of the seat cushion assembly 200. The upper end of the front link 300 is rotatably connected to the seat cushion assembly 200, and the lower end of the front link 300 is movably mounted on the base 100. The rear connecting rod 400 is located at the rear end of the seat cushion assembly 200, and its upper end is rotatably connected to the seat cushion assembly 200, while its lower end is rotatably connected to the base 100. One end of the height adjustment drive 500 is rotatably connected to the seat cushion assembly 200, and its other end is rotatably connected to the base 100. In actual use, the height adjustment drive 500 can extend and retract to adjust the position of the seat cushion assembly 200.

[0050] The backrest 800 is rotatably mounted at the rear end of the seat cushion assembly 200, and an adjuster 80 is provided between the backrest 800 and the seat cushion assembly 200. The adjuster 80 can drive the backrest 800 to adjust its tilt angle. When it is necessary to switch the car seat to zero-gravity mode, the tilt angle of the backrest 800 also needs to be adjusted. Under normal use, passengers can also adjust the tilt angle of the backrest 800 relative to the seat cushion assembly 200 according to their actual needs.

[0051] In this embodiment, one end of the high-adjustment drive component 500 is rotatably connected to the seat cushion assembly 200, and the other end of the high-adjustment drive component 500 is rotatably connected to the base 100, but not connected to the rear linkage 400. When adjusting the height, the high-adjustment drive component 500 will not swing with the swing of the rear linkage 400, which can effectively prevent it from encroaching on the legroom of the rear passengers, and its stability is better.

[0052] The high-adjustment drive component 500 drives the seat cushion assembly 200 to adjust its height through telescopic movement. Therefore, telescopic movement components such as gas springs, cylinders, and hydraulic cylinders can all achieve this. Optimally, in this embodiment, the high-adjustment drive component 500 is configured as a lead screw motor, which is positioned close to the front end of the seat cushion assembly 200 to fully utilize the space at the front of the car seat. The output lead screw of the lead screw motor is equipped with a first lead screw sleeve 50 that can telescopically move relative to the output lead screw. The side of the base 100 has a downwardly extending connecting bracket 10, and the high-adjustment drive component 500 is rotatably connected to the connecting bracket 10. Specifically, the end of the first lead screw sleeve 50 furthest from the lead screw is rotatably connected to the connecting bracket 10. By extending the connecting bracket 10 downwardly from the side of the base 100, the first lead screw sleeve 50 is easily hinged, and the lower hinge position provides better stability.

[0053] The base 100 in this embodiment includes a front seat 11 and a rear seat 12. The front seat 11 and the rear seat 12 can be separately arranged or fixedly connected as one unit by a bracket. Choosing a separate arrangement is convenient for installation and saves raw materials. Specifically, a front seat 11 is provided on each of the front two sides of the seat cushion assembly 200, and a rear seat 12 is provided on each of the rear two sides of the seat cushion assembly 200. The lower end of the front connecting rod 300 is movably disposed on the front seat 11, and the lower end of the rear connecting rod 400 is rotatably connected to the rear seat 12. The connecting bracket 10 is disposed on the rear seat 12.

[0054] Specifically, a zero-gravity adjustment motor 600 and a zero-gravity adjustment linkage 700 are provided on the base 100 near the front end of the seat cushion assembly 200. The zero-gravity adjustment linkage 700 is rotatably mounted on the base 100 and rotatably connected to the zero-gravity adjustment motor 600. The lower end of the front linkage 300 is hinged to the zero-gravity adjustment linkage 700. A motor bracket 70 is mounted on the zero-gravity adjustment linkage 700, and the zero-gravity adjustment motor 600 is mounted on and rotatably connected to the motor bracket 70. The zero-gravity adjustment motor 600 is configured as a lead screw motor, and a second lead screw sleeve 60 is mounted on its output lead screw. The second lead screw sleeve 60 is rotatably connected to the base 100. During high-adjustment, the zero-gravity adjustment motor 600 restricts the hinge point between the front link 300 and the zero-gravity adjustment link 700 onto the base 100, allowing the front link 300 to rotate relative to the hinge point. In other words, the zero-gravity adjustment motor 600 acts as a locking mechanism, restricting the hinge point and ensuring the stability of the four-bar linkage during high-adjustment.

[0055] More specifically, the base 100 is provided with an upward-opening limiting groove 1, which is approximately V-shaped. When adjusting for height, the hinge point between the front connecting rod 300 and the zero-gravity adjustment connecting rod 700 is confined within the limiting groove 1.

[0056] In practical use, the car seat not only features a height adjustment function but also integrates a zero-gravity adjustment function. During zero-gravity adjustment, the zero-gravity adjustment motor 600 drives the zero-gravity adjustment linkage 700 to rotate, which in turn drives the front linkage 300 to rotate, raising the front end of the seat cushion assembly 200 and switching the car seat to zero-gravity mode. Compared to existing car seats that integrate both zero-gravity and height adjustment functions, its overall structure is simpler and its cost is lower.

[0057] Furthermore, the base 100 is provided with an upward-facing limiting groove 1. When the car seat is adjusted to a higher position, the zero-gravity adjustment motor 600 plays a locking role, which restricts the hinge point between the front link 300 and the zero-gravity adjustment link 700 in the limiting groove 1, forming a four-bar linkage mechanism to ensure movement stability when the seat is adjusted to a higher position.

[0058] In this embodiment of the car seat, the bottom of the car seat is provided with an electric slide rail 900. The electric slide rail 900 includes a lower slide rail 91 and an upper slide rail 90 slidably disposed on the lower slide rail 91. The base 100 is disposed on the upper slide rail 90 and fixedly connected to the upper slide rail 90. The electric slide rail 900 is generally driven by a motor to slide the upper slide rail 90 along the lower slide rail 91. During use, the motor drives the upper slide rail 90 to slide along the lower slide rail 91, and the car seat is disposed on the upper slide rail 90 and slides along with the upper slide rail 90 to adjust its fore-and-aft position.

[0059] This embodiment integrates a car seat with high-adjustment and zero-gravity functions. Compared to adjusters and dual-screw solutions, it has a simpler structure and lower cost. The high-adjustment screw motor does not swing with the swing of the rear connecting rod 400, resulting in better legroom for rear passengers, allowing the seat cushion to be made lower and better adaptable to the vehicle's environment.

Claims

1. A car seat with a high profile, characterized in that... ,include: Base; The seat cushion assembly comprises a front link and a rear link. The seat cushion assembly is movably mounted on the base. The front link is located at the front end of the seat cushion assembly, and its upper end is rotatably connected to the seat cushion assembly, while its lower end is movably mounted on the base. The rear link is located at the rear end of the seat cushion assembly, and its upper end is rotatably connected to the seat cushion assembly, while its lower end is rotatably connected to the base. A high-adjustment drive component is provided, one end of which is rotatably connected to the seat cushion assembly and the other end of which is rotatably connected to the base. The high-adjustment drive component is also telescopic, which adjusts the position of the seat cushion assembly by raising and lowering it.

2. The car seat with high profile according to claim 1, characterized in that, The base has a downwardly extending connecting bracket on its side, and the high-adjustment drive component is rotatably connected to the connecting bracket.

3. The car seat with high profile according to claim 2, characterized in that, The high-adjustment drive is configured as a lead screw motor, which is located near the front end of the seat assembly, and the output lead screw of the lead screw motor is provided with a first lead screw sleeve that can telescopically move relative to the output lead screw; The end of the first lead screw sleeve away from the lead screw is rotatably connected to the connecting bracket.

4. The car seat with high profile according to claim 2, characterized in that, The base includes a front seat and a rear seat. The lower end of the front connecting rod is movably disposed on the front seat, and the lower end of the rear connecting rod is rotatably connected to the rear seat. The connecting bracket is disposed on the rear seat.

5. The car seat with high profile according to claim 1, characterized in that, The base is provided with a zero-gravity adjustment motor and a zero-gravity adjustment link near the front end of the seat assembly. The zero-gravity adjustment link is rotatably mounted on the base and rotatably connected to the zero-gravity adjustment motor. The lower end of the front link is hinged to the zero-gravity adjustment link. The zero-gravity adjustment motor is configured as a lead screw motor, and a second lead screw sleeve is provided on its output lead screw, the second lead screw sleeve being rotatably connected to the base.

6. The car seat with high profile according to claim 5, characterized in that, When adjusting to a high position, the zero-gravity adjustment motor restricts the hinge point between the front linkage and the zero-gravity adjustment linkage to the base. The front link rotates relative to the hinge point.

7. The car seat with high profile according to claim 6, characterized in that, The base is provided with an upward-facing limiting groove; When adjusting to a high position, the hinge point between the front link and the zero-gravity adjustment link is confined within the limiting groove.

8. The car seat with high profile according to claim 5, characterized in that, A motor bracket is mounted on the zero-gravity adjustment linkage, and the zero-gravity adjustment motor is mounted on the motor bracket and rotatably connected to the motor bracket.

9. The car seat with high profile according to claim 1, characterized in that, It also includes a backrest, which is rotatably disposed at the rear end of the seat cushion assembly, and an angle adjuster is provided between the backrest and the seat cushion assembly, which can drive the backrest to tilt.

10. The car seat with high profile according to claim 1, characterized in that, The bottom of the car seat is provided with an electric slide rail, which includes a lower slide rail and an upper slide rail slidably disposed on the lower slide rail. The base is disposed on the upper slide rail and is fixedly connected to the upper slide rail.

Images