Comfortable office chair

Abstract

The utility model relates to a comfortable office chair and belongs to the technical field of office chairs. A comfortable office chair comprises chair legs with a base and a plurality of forked parts, a gas spring supporting column arranged based on the base, a swivel chair tray arranged based on the gas spring supporting column, a chair seat and a backrest, and further comprises a back-through bearing body arranged based on the swivel chair tray, the through-back bearing body comprises a bearing body provided with a chair seat bearing part and a backrest bearing part, and a chair seat supporting body arranged based on the bearing body; and the chair seat is arranged on the basis of the chair seat supporting body. According to the utility model, the comprehensive performance of high stability, high fitting degree and long service life is realized through structural innovation, the seat cushion is suitable for sedentariness scenes such as offices and meetings, and the user experience is remarkably improved.

Description

Technical Field

[0001] This utility model relates to an office chair, and more particularly to a comfortable office chair. It belongs to the technical field of office chairs. Background Technology

[0002] With the diversification of office environments and the increase in people who sit for long periods, the comfort and functionality of office chairs have become core user concerns. While traditional office chairs can meet basic usage needs, the following problems have gradually emerged during long-term use:

[0003] The supporting structure is scattered and the overall stability is insufficient: The seat and backrest of traditional office chairs are usually fixed to the swivel chair tray by independent brackets or a single connection point. After being subjected to human pressure for a long time, problems such as loosening and abnormal noise are likely to occur. In particular, when frequently adjusting the reclining angle of the chair back, the connection parts are prone to failure due to stress concentration.

[0004] Low ergonomic fit and limited comfort: Traditional chair seats and backrests are mostly flat or simple curved designs, which are difficult to match the curves of the human waist, hips, back and sacrum. Long-term use can easily lead to local pressure (such as the waist being unsupported and uneven pressure on the hips), causing fatigue; some backrests use a hard frame + soft padding structure, but the soft padding is not supportive enough and cannot provide continuous and effective back support.

[0005] Poor functional expandability and cumbersome component installation: Traditional armrests are mostly fixed or single-support structures, which need to be fixed separately to the swivel chair tray during installation, and the support force is concentrated in a single position. During use, the armrests are prone to tilting or wobbling due to uneven force. As the core component of the lifting mechanism, the gas spring support column has direct holes for mounting to the base without protective structures. During frequent lifting, the hole walls are prone to wear due to friction, affecting the lifting accuracy and lifespan of the gas spring.

[0006] Therefore, there is an urgent need for a comfortable office chair that improves overall stability, enhances ergonomics, simplifies component installation, and extends service life through structural optimization. Utility Model Content

[0007] This invention aims to solve the aforementioned problems by providing a comfortable office chair. The office chair of this invention features innovative designs such as a continuous back support, a double-support structure, and an ergonomic backrest, systematically addressing the pain points of traditional office chairs.

[0008] The technical solution of this utility model to solve the above problems is as follows:

[0009] A comfortable office chair includes chair legs having a base and multiple forks, gas spring support columns based on the base, a swivel chair tray based on the gas spring support columns, a seat, and a backrest. It also includes a through-back support body based on the swivel chair tray, the through-back support body comprising a support body having a seat support portion and a backrest support portion, and a seat support body based on the support body body; the seat is based on the seat support body.

[0010] As a preferred embodiment of the above technical solution, the upper end of the backrest is connected to the backrest bearing part through a backrest support body, and the lower end is fixed to the seat support body.

[0011] As a preferred embodiment of the above technical solution, the office chair further includes armrests, which include armrest functional parts, armrest support parts, and armrest connecting parts; the armrests are installed to the swivel chair tray through the armrest connecting parts.

[0012] As a preferred embodiment of the above technical solution, both the handrail functional part and the handrail support part are two in number, with the first handrail support part and the second handrail support part respectively connected to the two ends of the handrail connecting part.

[0013] As a preferred embodiment of the above technical solution, the bottom of the through-back support body is provided with a through hole to facilitate the insertion of the gas spring support column.

[0014] As a preferred embodiment of the above technical solution, the through-back support is fixed to the swivel chair tray via the seat support portion.

[0015] As a preferred embodiment of the above technical solution, the seat support portion includes a seat connecting portion and a second support portion, wherein the second support portion is fixedly connected to the seat.

[0016] As a preferred embodiment of the above technical solution, the base is provided with a mounting hole in the middle for the gas spring support column, and a reinforcing collar is fitted into the mounting hole.

[0017] As a preferred embodiment of the above technical solution, the backrest includes a backrest frame and a mesh fabric covering the backrest frame.

[0018] As a preferred embodiment of the above technical solution, the lower part of the backrest frame has an ergonomic section that is adapted to the human hip and sacral region.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. The integrated backrest support structure combines the seat support and backrest support into a single carrier, avoiding the looseness issues of traditional independent supports. The seat support is directly fixed to the support body and connected to the seat, while the backrest is connected to the backrest support through the backrest support, forming a rigid support structure that works in tandem with the "seat-seat support-backrest support-backrest support-backrest" and "seat-seat support-backrest support-seat" links. This significantly enhances the stability of the seat and backrest during tilting and turning, and provides cushioning during lifting and lowering, preventing the gas spring support column from causing discomfort to the user during sudden stops at its limit.

[0021] 2. The lower end of the backrest is fixed to the seat support, and the upper end is connected to the backrest support part (612) through the backrest support to form a three-point support of "lower end-middle part-upper end", so that the backrest can fit the curve of the human back more evenly, especially providing continuous support in the waist and hip area, reducing fatigue from sitting for a long time.

[0022] 3. The ergonomic design of the lower part of the backrest frame is specially adapted to the curve of the human hip and sacrum. Combined with the softness and breathability of the mesh fabric, it can not only distribute hip pressure, but also adapt to the back contour of users of different body types through the elastic deformation of the mesh, further improving the comfort of sitting posture.

[0023] 4. The armrest adopts a "double support part + connecting part" design to form a symmetrical support structure. This structure can be directly installed through the swivel chair tray without the need for additional fixing brackets, which simplifies the assembly process. At the same time, the double support part distributes the pressure on the armrest (such as the lateral force when the arm is placed), avoiding tilting or deformation caused by excessive force on a single point, and improving the service life and operational stability of the armrest.

[0024] 5. The mounting holes in the middle of the base are fitted with reinforced rings, which can effectively disperse the force and impact on the base during the lifting and lowering of the gas spring support column, and improve the service life of the chair legs.

[0025] 6. The backrest support is fixed to the swivel chair tray via the seat connection part of the seat support unit, and the second support part is directly connected to the seat, forming a modular "tray-support-seat" assembly unit. During assembly, only the support needs to be positioned and fixed to complete the installation of the seat, which greatly shortens the production and assembly time. In addition, each component (such as armrests and backrest) is fixed to the main structure through independent connection parts, which can be directly disassembled and replaced during later maintenance, reducing maintenance costs.

[0026] 7. In summary, this utility model achieves significant improvements in stability, comfort, assembly efficiency, and service life through integrated support of the through-back load-bearing body, mechanical optimization of the double support structure, ergonomic backrest design, and protective reinforcement of key components, providing users with a new type of office chair that balances functionality and comfort. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 yes Figure 1 Side view;

[0029] Figure 3 This is a partial structural diagram of the chair legs;

[0030] In the diagram, the component names represented by each label are as follows:

[0031] 1- Chair legs,

[0032] 2-Gas spring support column,

[0033] 3- Swivel chair tray,

[0034] 4- Seat,

[0035] 5-Backrest,

[0036] 6-Through-back support structure,

[0037] 7-Handrail,

[0038] 11-Base,

[0039] 12-Bifurcation,

[0040] 13-Reinforced ring toss,

[0041] 51-Backrest frame,

[0042] 61-Bearing body,

[0043] 62-Seating support body,

[0044] 63-Backrest support,

[0045] 71-Handrail Function Section

[0046] 72-Handrail support section,

[0047] 73-Handrail connection part,

[0048] 511 - Ergonomics Department

[0049] 611 - Seat support unit

[0050] 612 - Backrest support unit

[0051] 6111 - Seat connection part,

[0052] 6112 - Second support section. Detailed Implementation

[0053] The present invention will be further explained below with reference to the accompanying drawings.

[0054] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. Any changes made by those skilled in the art after reading the specification of the present invention, as long as they are within the scope of the claims, will be protected by patent law.

[0055] like Figures 1-2 As shown, a comfortable office chair includes chair legs 1, gas spring support columns 2, a swivel chair tray 3, a backrest support 6, a seat 4, a backrest 5, and armrests 7. Each component is modularly designed to achieve efficient assembly and stable support. Specifically, it has the following structure.

[0056] Chair leg 1 serves as the basic support, such as Figure 3 As shown, the chair includes a base 11, multiple forked sections 12, and reinforcing rings 13 inserted into mounting holes in the base. The forked sections 12 are radially distributed at the bottom of the base 11 (e.g., 5 forks, evenly spaced) to distribute the weight of the seat and improve standing stability. The base 11 is circular or square, with a mounting hole in the center into which the reinforcing rings 13 are fitted. The reinforcing rings 13 are made of metal, with a clearance fit (e.g., 0.1~0.2mm) between their inner walls and the outer walls of the gas spring support columns 2 to extend the service life of the base. The forked sections 12 have 5 branches, each with a swivel wheel at its end.

[0057] A gas spring support column 2 is vertically installed in the middle of the base 11. Its upper end connects to the swivel chair tray 3, and its lower end is fixed in the mounting hole of the base 11. The seat height is adjusted by the extension and retraction of the gas spring. The column includes a gas spring body and a lifting rod. The lower end of the gas spring body is fixed to a reinforcing ring in the mounting hole of the base, and the upper end of the lifting rod is connected to the center of the bottom of the swivel chair tray. The gas spring stroke is 300~500mm, supporting a seat height adjustment range of 450~800mm (conforming to commonly used ergonomic heights).

[0058] The swivel chair tray 3 is horizontally mounted on top of the gas spring support column 2, providing a mounting platform for components such as the backrest support 6 and armrests 7. The swivel chair tray 3 is made of die-cast aluminum alloy and is disc-shaped, with a mounting groove in the center of its lower surface that matches the backrest support. Four armrest mounting holes are provided on the upper part of the swivel chair tray for fixing the armrest connectors.

[0059] The seat 4 is rigidly connected to the back support 6 via the seat support 62, and its surface is covered with sponge or elastic leather to enhance the seating comfort.

[0060] The backrest 5 is connected to the backrest support part 612 of the backrest support body 6 via the backrest support body 63, and its lower end is fixed to the seat support body 62, forming a three-point support that conforms to the curve of the human back. The backrest 5 includes a backrest frame 51 and a mesh fabric. The backrest frame 51 is generally arc-shaped (matching the curve of the human back), and the lower part has an ergonomic part 511 adapted to the human hip and sacrum area—this part is concave arc-shaped to improve hip support. The mesh fabric is made of elastic nylon mesh fabric, which is fixed to the surface of the backrest frame 51 by stitching or buckles, covering the entire backrest area. It is breathable and can adapt to the back contours of users of different body types through elastic deformation.

[0061] The through-back support body 6 integrates the support functions of the seat and backrest. It is fixed to the swivel chair tray 3 via the seat support part 611, the seat support body 62 connects to the seat 4, and the backrest support body 63 connects to the backrest 5, forming a "seat-backrest" collaborative support structure. The seat support part 611 and the backrest support part 612 are integrally connected to form the through-back support body 6, giving it a certain elastic cushioning performance, especially during lifting and lowering. More specifically, as... Figures 1-2 As shown, the through-back support 6 includes a support body 61 having a seat support portion 611 and a backrest support portion 612, and a seat support 62 based on the support body 61; the seat 4 is based on the seat support 62. The seat support portion 611 includes a seat connecting portion 6111 and a second support portion 6112, and the second support portion 6112 is fixedly connected to the seat 4.

[0062] The armrest 7 includes an armrest functional part 71, an armrest support part 72, and an armrest connecting part 73. Both the armrest functional part 71 and the armrest support part 72 are in duplicate, with a first armrest support part and a second armrest support part respectively connected to both ends of the armrest connecting part 73. The armrest 7 is mounted to the swivel chair tray 3 via the armrest connecting part 73. The single connecting part combined with the double support parts 72 distributes the force, providing stable arm support.

[0063] In summary, this comfortable office chair achieves a combination of high stability, excellent fit, and long lifespan through structural innovation, making it suitable for sedentary scenarios such as office work and meetings, and significantly improving the user experience.

Claims

1. A comfortable office chair, comprising chair legs (1) having a base (11) and a plurality of forks (12), gas spring support columns (2) based on the base, a swivel chair tray (3) based on the gas spring support columns, a seat (4), and a backrest (5), characterized in that: It also includes a back support (6) based on the swivel chair tray, the back support (6) including a support body (61) having a seat support (611) and a back support (612), and a seat support (62) based on the support body (61); the chair seat (4) is based on the seat support (62).

2. The comfortable office chair according to claim 1, characterized in that: The upper end of the backrest (5) is connected to the backrest support (612) via the backrest support (63), and the lower end is fixed to the seat support (62).

3. A comfortable office chair according to claim 1, characterized in that: The office chair also includes an armrest (7), which includes an armrest function part (71), an armrest support part (72), and an armrest connecting part (73); the armrest (7) is installed to the swivel chair tray (3) through the armrest connecting part (73).

4. A comfortable office chair according to claim 3, characterized in that: The handrail functional part (71) and handrail support part (72) are both two in number, and the first handrail support part and the second handrail support part are respectively connected to the two ends of the handrail connecting part (73).

5. A comfortable office chair according to claim 1, characterized in that: The bottom of the through-back support body (6) is provided with a through hole to facilitate the insertion of the gas spring support column (2).

6. A comfortable office chair according to claim 1, characterized in that: The through-back support (6) is fixed to the swivel chair tray (3) via the seat support (611).

7. A comfortable office chair according to claim 1, characterized in that: The seat support part (611) includes a seat connecting part (6111) and a second support part (6112), and the second support part (6112) is fixedly connected to the seat (4).

8. A comfortable office chair according to claim 1, characterized in that: The base (11) has a mounting hole in the middle for the gas spring support column, and a reinforcing collar (13) is fitted in the mounting hole.

9. A comfortable office chair according to claim 1, characterized in that: The backrest (5) includes a backrest frame (51) and a mesh fabric covering the backrest frame.

10. A comfortable office chair according to claim 9, characterized in that: The lower part of the backrest frame (51) has an ergonomic section (511) adapted to the human hip and sacral region.

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