Adjustable seat cushion and foldable automobile seat

Abstract

The utility model relates to the technical field of automobile seats, and discloses an adjustable seat cushion and a foldable automobile seat, the adjustable seat cushion is applied to the automobile seat, and the adjustable seat cushion comprises a bottom frame, an electric sliding rail, a front end support and a seat basin; the front end of the seat basin is rotatably arranged on the bottom frame through a front end bracket; the electric sliding rail comprises an upper rail, a lower rail and a driving motor, the lower rail is arranged on the bottom frame, the upper rail is arranged on the lower rail in a sliding mode, and the upper rail is connected with the rear end of the sitting basin; the driving motor is arranged on the upper track and can drive the upper track to slide back and forth along the lower track; when the driving motor drives the upper rail to slide from the rear end to the front end along the lower rail, the inclination angle of the seat basin can be adjusted, and the seat basin dives. The utility model has the advantages that the seat basin of the adjustable seat cushion can realize the diving action so as to be convenient for folding the automobile seat, the structure is simple, the manufacture and the assembly are simple, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially to an adjustable seat cushion and foldable automobile seat. BACKGROUND

[0002] When the automobile seat needs to realize the folding function forward, the backrest needs to be turned forward and be flatly attached to the seat cushion. However, if the seat cushion does not move, the backrest is prone to interfere with the seat cushion when turned forward, resulting in the backrest being unable to be flatly folded in place. Therefore, when the backrest is turned forward, the seat cushion generally needs to be adjustable to first make the sitting basin on the seat cushion dive forward to create space and avoid interference between the backrest and the seat cushion when the backrest is turned over, so as to ensure that the backrest can be flatly folded in place forward.

[0003] In the existing automobile seat with the folding function, the structure of the adjustable seat cushion for realizing the diving function of the sitting basin is complex, the number of parts is large, and the manufacturing and assembly are troublesome and high in cost. UTILITY MODEL CONTENTS

[0004] In view of the above problems in the prior art, the utility model aims to solve the technical problem of providing an adjustable seat cushion and foldable automobile seat which are simple in structure, easy to manufacture and assemble, and low in cost.

[0005] The utility model solves the technical problem by adopting the technical scheme of providing an adjustable seat cushion applied to an automobile seat, which comprises:

[0006] a chassis, an electric slide rail, a front end support and a sitting basin;

[0007] The front end of the sitting basin is rotatably arranged on the chassis through the front end support; the electric slide rail comprises an upper rail, a lower rail and a driving motor, the lower rail is arranged on the chassis, the upper rail is slidably arranged on the lower rail, and the upper rail is connected with the rear end of the sitting basin; the driving motor is arranged on the upper rail and can drive the upper rail to slide forward and backward along the lower rail;

[0008] When the driving motor drives the upper rail to slide from the rear end to the front end along the lower rail, the inclination of the sitting basin can be adjusted and the sitting basin can dive.

[0009] Further, the lower rail is fixedly connected with the chassis.

[0010] Further, the rear end support is arranged on the upper rail, and the rear end of the sitting basin is rotatably connected with the rear end support.

[0011] Further, the rear end support is arranged on the upper rail, and the rear end of the sitting basin is rotatably connected with the rear end support.

[0012] The rear end of the sitting basin is provided with a horizontal rod, and two ends of the horizontal rod are rotatably connected with two rear end supports respectively.

[0013] Further, the upper rail and the lower rail are both provided with two rails and are symmetrically arranged.

[0014] Further, the driving motor drives the upper rail to slide along the lower rail through a screw nut mechanism.

[0015] Or the driving motor drives the upper rail to slide along the lower rail through a worm gear mechanism.

[0016] Or the driving motor drives the upper rail to slide along the lower rail through a gear and rack mechanism.

[0017] Further, the front end supports are symmetrically arranged on the left and right sides, and two ends of the front end support are hingedly connected with the sitting basin and the base frame respectively.

[0018] Further, the electric sliding rail can drive the sitting basin to move forward by a distance greater than or equal to 167 mm, and can drive the sitting basin to submerge by a height greater than or equal to 40 mm.

[0019] Further, the upper rail and the lower rail are both straight rails.

[0020] The utility model provides a foldable automobile seat, which comprises:

[0021] The backrest and the adjustable seat cushion are as described above.

[0022] When the sitting basin is submerged, the backrest can be folded forward on the sitting basin.

[0023] Compared with the prior art, the utility model has at least the following beneficial effects:

[0024] In the utility model, the rear end of the sitting basin is arranged on the electric sliding rail, the front end of the sitting basin is rotatably arranged on the base frame through the front end support, the electric sliding rail is driven to realize the inclination angle adjustment of the sitting basin and the submerging movement of the sitting basin, the sitting basin is uniformly and stably inclined and submerged, and the electric sliding rail is a standard part and can be directly purchased, so that the manufacturing and assembly of the seat cushion can be simplified.

[0025] In the utility model, the electric sliding rail can adopt a common short rail, can meet the travel requirement, and can be applied to various types of electric sliding rails such as a screw nut type, a worm gear type and a gear and rack type, and is convenient to maintain and replace.

[0026] In the utility model, the adjustable seat mainly comprises a base frame, an electric sliding rail, a sitting basin and a front end support, the overall structure is very simple, the number of parts is small, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 This is a schematic diagram of the adjustable seat cushion of this utility model;

[0028] Fig. 2 A structural diagram from another perspective;

[0029] Fig. 3 This is a schematic diagram of the adjustable seat cushion after the basin has been removed.

[0030] In the picture:

[0031] 1. Base frame;

[0032] 2. Electric slide rail; 20. Drive motor; 21. Upper rail; 210. Rear end bracket; 22. Lower rail;

[0033] 3. Front-end bracket;

[0034] 4. Stool; 40. Horizontal bar. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Example 1:

[0041] like Figs. 1-3 As shown, an adjustable seat cushion of this embodiment is applied to a car seat, and mainly includes: a base frame 1, an electric slide rail 2, a front support 3, and a seat basin 4.

[0042] The front end of the basin 4 is rotatably mounted on the base frame 1 via the front end bracket 3; the electric slide rail 2 includes an upper rail 21, a lower rail 22 and a drive motor 20. The lower rail 22 is mounted on the base frame 1 and fixedly connected thereto. The upper rail 21 is slidably mounted on the lower rail 22 and is connected to the rear end of the basin 4; the drive motor 20 is mounted on the upper rail 21 and can drive the upper rail 21 to slide back and forth along the lower rail 22.

[0043] During use, when the drive motor 20 drives the upper rail 21 to slide along the lower rail 22 from the rear end to the front end, the tilt angle of the basin 4 can be adjusted and the basin 4 can be lowered.

[0044] In this embodiment, the rear end of the seat basin 4 is mounted on the electric slide rail 2, and the front end of the seat basin 4 is rotatably mounted on the base frame 1 via the front bracket 3. Driven by the electric slide rail 2, the tilt angle of the seat basin 4 and its downward movement are adjusted. The tilting and downward movement of the seat basin 4 is uniform and stable. Furthermore, the electric slide rail 2 is a standard component and can be purchased directly, simplifying the manufacturing and assembly of the seat cushion. Compared to other drive structures, using the electric slide rail 2 as the drive structure is more technologically mature and has better reliability.

[0045] Furthermore, the adjustable seat is mainly composed of a base frame 1, an electric slide rail 2, a seat basin 4, and a front support 3. The overall structure is very simple, with few parts and low cost.

[0046] It should be explained that the electric slide rails 2 used at the bottom of existing car seats are basically applicable to this embodiment. That is, the transmission method between the drive motor 20 and the upper rail 21 in the electric slide rail 2 can be implemented in a variety of ways.

[0047] For example, in implementation method one: the drive motor 20 drives the upper rail 21 to slide back and forth along the lower rail 22 via a screw and nut mechanism. That is, in this implementation method, the electric slide rail 2 used is an existing screw and nut type electric slide rail, such as a miniaturized electric slide rail similar to that described in publication number CN222376996U. Alternatively, an electric slide rail similar to that described in publication number CN219360870U for automotive front seats can also be used.

[0048] For example, in the second implementation method: the drive motor 20 drives the upper rail 21 to slide back and forth along the lower rail 22 via a worm gear mechanism. That is, in this implementation method, the electric slide rail 2 used is an existing worm gear type electric slide rail, such as, but not limited to, the electric slide rail for a car seat described in publication number CN214450438U.

[0049] For example, in implementation method three: the drive motor 20 drives the upper rail 21 to slide back and forth along the lower rail 22 via a gear and rack mechanism. That is, in this implementation method, the electric slide rail 2 used is an existing gear and rack type electric slide rail, such as an electric slide rail similar to that described in CN116811682A for a car seat. Alternatively, an electric slide rail device similar to that described in CN215244457U for a vehicle seat can also be used.

[0050] Of course, there are many other electric slide rails for the bottom of car seats that can be used in this embodiment. Since these electric slide rails are existing technologies, they will not be described in detail here.

[0051] The electric slide rail 2 in this embodiment can use ordinary short rails to meet the travel requirements, resulting in lower costs. Furthermore, various types of electric slide rails 2, such as lead screw and nut type, worm gear type, and rack and pinion type, are applicable, making maintenance and replacement convenient.

[0052] Specifically, in this embodiment, both the upper track 21 and the lower track 22 are straight tracks. The upper track 21 moves along the lower track 22 in a straight line, which results in less resistance and smoother movement compared to sliding along a curve. Furthermore, there are two upper tracks 21 and two lower tracks 22, symmetrically arranged, and a single drive motor 20 can drive both upper tracks 21 to slide synchronously along the two lower tracks 22. In this embodiment, the lower track 22 is fixedly connected to the base frame 1, for example, by welding or bolting.

[0053] Furthermore, in this embodiment, a rear end bracket 210 is configured on the upper track 21, and the rear end of the basin 4 is rotatably connected to the rear end bracket 210. The rear end bracket 210 facilitates assembly. Additionally, two rear end brackets 210 are symmetrically arranged on the left and right sides. The rear end of the basin 4 has a crossbar 40, and the two ends of the crossbar 40 are rotatably connected to the two rear end brackets 210 respectively. This ensures that the forces on both sides of the rear end of the basin 4 are balanced, facilitating its sliding. Similarly, to ensure stable movement on both sides of the front end of the basin 4, two front end brackets 3 are symmetrically arranged on the left and right sides in this embodiment. The two ends of the front end brackets 3 are hinged to the basin 4 and the base frame 1 respectively.

[0054] In practical use, the electric slide rail 2 of this embodiment can drive the seat basin 4 forward a distance greater than or equal to 167 mm, and can drive the seat basin 4 downward a height greater than or equal to 40 mm. This ensures that the seat basin 4 can free up enough space for the backrest to flip forward, ensuring that the folded car seat is compact and occupies little space.

[0055] As the upper track 21 gradually moves from the rearmost position of the lower track 22 to the front end of the lower track 22, during the initial sliding process, the rear end of the basin 4 gradually moves forward, while the front support 3 gradually rises. During this process, the tilt angle of the basin 4 gradually tilts backward, and the tilt angle gradually increases. As the upper track 21 continues to slide forward, the front support 3 rotates and moves downward from an upright position to the other side, and the tilt angle of the basin 4 gradually decreases until the basin 4 finally approaches a horizontal position, that is, the basin 4 completes the diving action. The diving height of the basin 4 is greater than or equal to 40 mm, and the forward movement distance of the basin 4 is greater than or equal to 167 mm. At this time, the front support 3 is also close to a horizontal position.

[0056] Example 2:

[0057] A foldable car seat according to this embodiment mainly includes:

[0058] Backrest; and,

[0059] The adjustable seat cushion in Embodiment 1; Optionally, a mounting bracket for backrest installation can be provided on the base frame 1. The backrest is rotatably mounted on the mounting bracket, and the backrest angle can be electrically adjusted by setting an angle adjuster. The backrest can rotate relative to the adjustable seat cushion to facilitate tilt adjustment and folding.

[0060] In actual use, when the seat basin 4 is lowered, the backrest can be flipped forward and folded onto the seat basin 4, ensuring that the backrest can be flipped flat onto the seat basin 4. After being flipped into place, the folded size is small and takes up little space.

[0061] In this design, the adjustable seat cushion's seat basin can be lowered to facilitate folding of the car seat, resulting in a simple structure, easy manufacturing and assembly, and low cost.

Claims

1. An adjustable seat cushion for use in automobile seats, characterized in that, The utility model relates to a chair, including: A base, an electric slide rail, a front end support and a sitting basin; The front end of the sitting basin is rotatably arranged on the base through the front end support; the electric slide rail comprises an upper rail, a lower rail and a driving motor, the lower rail is arranged on the base, the upper rail is slidably arranged on the lower rail, and the upper rail is connected with the rear end of the sitting basin; the driving motor is arranged on the upper rail and can drive the upper rail to slide back and forth along the lower rail; When the driving motor drives the upper rail to slide from the rear end to the front end along the lower rail, the inclination angle of the sitting basin can be adjusted, and the sitting basin can be submerged.

2. The adjustable seat cushion of claim 1, wherein, The lower rail is fixedly connected with the base.

3. The adjustable seat cushion of claim 1, wherein, The rear end support is arranged on the upper rail, and the rear end of the sitting basin is rotatably connected with the rear end support.

4. The adjustable seat cushion of claim 3, wherein, The rear end support is symmetrically arranged with two rear end supports. The rear end of the sitting basin has a cross bar, and the two ends of the cross bar are rotatably connected with the two rear end supports respectively.

5. The adjustable seat cushion of claim 1, wherein, The upper rail and the lower rail are both arranged in pairs and symmetrically.

6. The adjustable seat cushion of claim 1, wherein, The driving motor drives the upper rail to slide along the lower rail through a screw nut mechanism. Or the driving motor drives the upper rail to slide along the lower rail through a worm gear mechanism. Or the driving motor drives the upper rail to slide along the lower rail through a gear and rack mechanism.

7. The adjustable seat cushion of claim 1, wherein, The front end support is symmetrically arranged with two front end supports, and the two ends of the front end support are hingedly connected with the sitting basin and the base respectively.

8. The adjustable seat cushion of claim 1, wherein, The electric slide rail can drive the sitting basin to move forward by a distance greater than or equal to 167mm, and can drive the sitting basin to submerge by a height greater than or equal to 40mm.

9. The adjustable seat cushion of claim 1, wherein, The upper rail and the lower rail are both straight rails.

10. A foldable car seat, characterized by The utility model relates to a chair, including: A backrest and the adjustable seat cushion as claimed in any one of claims 1-9; When the sitting basin is submerged, the backrest can be folded and turned over forward on the sitting basin.

Images