Angle-adjustable seat cushion framework and seat

Abstract

This utility model discloses an angle-adjustable seat cushion frame, relating to the field of automotive seat technology. It includes a base and a seat frame. The rear of the seat frame is connected to the base via a slider through a groove. A crank is connected to the front of the seat frame, with the other end of the crank connected to the base. A drive unit connects to both the base and the seat frame to drive the seat frame to move. Compared to a five-bar linkage structure, this angle-adjustable seat cushion frame and seat have fewer parts, lower space occupancy, and a single motor drives multi-degree-of-freedom motion, achieving seat cushion angle adjustment, improving passenger comfort, reducing fatigue, and offering lower cost, smaller space occupation, and simpler layout. It also improves the overall coordination of seat adjustment. The crank-slider mechanism converts the linear motion of the motor into the composite motion of the seat cushion, simplifying the structure while achieving a zero-gravity sitting posture.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an angle-adjustable seat cushion frame and seat. Background Technology

[0002] During the development of seats, mainstream five-link zero-gravity seats have limitations such as high price, complex structure, and large space occupation. Moreover, the complex linkage mechanism leads to a high failure rate, and the single rotation of the seat cushion cannot effectively support the thighs.

[0003] Therefore, it is necessary to design an angle-adjustable seat frame and seat to improve the above problems. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides an angle-adjustable seat cushion frame and seat, which is low in cost, occupies little space, has a simple layout, and improves the seating comfort.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An angle-adjustable seat frame includes a base and a seat frame. The rear of the seat frame is connected to the base via a slider and a crank is connected to the front of the seat frame. The other end of the crank is connected to the base, and the two ends of the drive unit are connected to the base and the seat frame respectively to drive the seat frame to move.

[0007] As a preferred embodiment of this invention, the drive unit is a push rod motor.

[0008] As a preferred embodiment of this invention, the sliding grooves are symmetrically arranged at the rear of the base.

[0009] As a preferred embodiment of this invention, the drive unit is located in the middle of the base and the frame.

[0010] This utility model also proposes a seat, including the angle-adjustable seat cushion frame as described above.

[0011] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are:

[0012] (1) The angle-adjustable seat frame and seat of this utility model have fewer parts and lower space occupancy compared to the five-link structure. A single motor drives multi-degree-of-freedom motion to realize the seat angle adjustment function, improve the comfort of human riding and reduce human fatigue.

[0013] (2) The present invention provides an angle-adjustable seat frame and seat, which is low in cost, occupies little space, has a simple layout, and improves the overall coordination of seat adjustment. The crank-slider mechanism converts the linear motion of the motor into the composite motion of the seat (forward lifting + backward sliding), which simplifies the structure and achieves zero-gravity sitting posture. Attached Figure Description

[0014] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings, and with a more complete understanding of the invention. In the drawings:

[0015] Figure 1 This is a perspective view of the seat cushion frame of this utility model.

[0016] Figure 2 This is a side view of the seat cushion frame of this utility model example;

[0017] Figure 3 This is an exploded view of the seat cushion frame of this utility model example;

[0018] Figure 4 This is a side view of the seat after adjustment in this utility model embodiment;

[0019] Figure 5 This is a side view of the seat in the design state of this utility model embodiment;

[0020] The reference numerals in the drawings include: base 1, seat frame 2, crank 3, drive unit 4, backrest 5, slide 11, and slider 21. Detailed Implementation

[0021] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. It should be pointed out that all accompanying drawings are exemplary representations. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Reference Figures 1 to 5 , Figure 1 This is a perspective view of the seat cushion frame of this utility model. Figure 2 This is a side view of the seat cushion frame of this utility model. Figure 3 This is an exploded view of the seat cushion frame of this utility model. Figure 4 This is a side view of the seat after adjustment, according to an example of this utility model. Figure 5 This is a side view of the seat design of this utility model. The utility model provides an angle-adjustable seat frame, including a base 1, a seat frame 2, a crank 3, a drive unit 4, and a backrest 5. The base 1 is fixed to the vehicle body directly or through a slide rail. The rear of the base 1 is symmetrically provided with a slide groove 11. The rear of the seat frame 2 is symmetrically provided with a slider 21. The slider 21 is connected to the slide groove 11, forming a rear connection between the seat frame 2 and the base 1. The front of the seat frame 2 is connected to the crank 3. The crank 3 is symmetrically provided. The other end of the crank 3 is connected to the base 1. That is, the two ends of the crank 3 are respectively connected to the front of the seat frame 2 and the front of the base 1, forming a front connection between the seat frame 2 and the base 1. The drive unit 4 is located in the middle of the base 1 and the seat frame 2. The two ends of the drive unit 4 are respectively connected to the base 1 and the seat frame 2 to drive the seat frame 2 to move. The drive unit 4 is preferably a push rod motor.

[0026] This utility model also provides a seat, including an angle-adjustable seat cushion frame as described above, with a backrest 5 hinged to the rear side of the base 1.

[0027] The following will refer to Figures 1 to 5 The working principle of this utility model will be explained.

[0028] The seat frame 2 is moved by the drive unit 4. The seat frame 2 is constrained by the crank 3 and the slide 11. Its movement is characterized by front lifting and overall translation, supporting the front of the thighs and realizing the function of adjusting the seat cushion angle. The innovative crank 3-slider 21 linkage structure realizes the multi-degree-of-freedom movement of the seat cushion. At the same time, the backrest 5 rotates backward, improving the seat comfort and reducing human fatigue in a limited space.

[0029] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An angle-adjustable seat cushion framework comprising a base, a seat frame, characterized in that, The rear of the seat frame is connected to the base via a slider and a crank is connected to the front of the seat frame. The other end of the crank is connected to the base. The two ends of the drive unit are connected to the base and the seat frame respectively to drive the seat frame to move.

2. The angle-adjustable cushion framework according to claim 1, wherein, The drive unit is a push rod motor.

3. The angle-adjustable cushion framework according to claim 1, wherein, The slides are symmetrically arranged at the rear of the base.

4. The angle-adjustable cushion framework according to claim 1, wherein, The drive unit is located in the middle of the base and the frame.

5. A seat, characterized by Includes the angle-adjustable seat frame as described in any one of claims 1-4.

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