Sectional adjusting type ergonomic chair

Abstract

The invention discloses a sectional adjusting type office chair. The chair comprises a chair seat with sliding chutes parallel to each other in the left side and the right side, a seat cushion balancing mechanism arranged on the inner sides of the sliding chutes, a backrest supporting rod rotatably arranged on the back side of the chair seat, a backrest adjusting mechanism arranged on the backrestsupporting rod, a curvature adjusting mechanism arranged on the backrest adjusting mechanism, and backrest supporting sheets arranged on the curvature adjusting mechanism, wherein the backrest supporting sheets are arranged in the axial direction of the backrest supporting rod. The seat cushion balancing mechanism is arranged, so that the seat cushion can incline forwards and backwards through abalance rotating shaft to adjust the riding pressure, and the comfort degree of the chair is improved; and the backrest supporting sheets are arranged for supporting the back, and each backrest supporting sheet can be adjusted through the backrest adjusting mechanism and the curvature adjusting mechanism to adapt to back curves of users with different body shapes, so that the comfort and applicability of the chair are improved.

Description

technical field [0001] The invention relates to the field of office furniture, in particular to a section-adjustable ergonomic chair. Background technique [0002] Office chairs refer to various chairs that are equipped for the convenience of work in daily work and social activities. General office chairs refer to the back chairs that people sit on when they work on the desktop in a sitting position. Traditional office chairs are usually equipped with casters. And the air pressure rod, it is convenient to move the chair and adjust the height of the chair, but after the ordinary office chair is used for a long time, the user will still feel tired, so in recent years, there has been a special design for the body curve structure. High-quality office chairs to adapt to the sitting posture of the human body, improve riding comfort, and reduce fatigue during use. [0003] The applicant found that the existing seat cushions of office chairs are often of fixed structure. When the h...

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Problems solved by technology

[0002] Office chairs refer to various chairs that are equipped for the convenience of work in daily work and social activities. General office chairs refer to the back chairs that people sit on when they work on the desktop in a sitting position. Traditional office chairs are usually equipped with casters. And the air pressure rod, it is convenient to move the chair and adjust the height of the chair, but after the ordinary office chair is used for a long time, the user will still feel tired, so in recent years, there has been a special design for the body curve structure. High-quality office chairs to adapt to the sitting posture of the human body, improve riding comfort, and reduce fatigue

[0003] The applicant found that the existing seat cushions of office chairs are often of fixed structure. When the human body is sitting on its back, the center of gravity is located at the buttocks, but when working at the desk, the center of gravity will be transferred to the thigh. Adjustment follows the change of the center of gravity, resulting in uneven force. The weight of the human body is concentrated on the buttocks or thighs for a long time, which is prone to fatigue and soreness. The comfort and flexibility of use are low. At the same time, the backrest of existing office chairs is often Integral structure, or simply divided into several major parts such as the waist, back and head, and the back curve of the human body is determined by a total of 26 large segmental bones in the spine, so ordinary chairs have too few segments and cannot be adjusted according to different People of height and body shape can adjust the suitable curve, which has low applicability, and the lateral curvature of the backrest is often a fixed structure, so it is difficult to make specific adjustments according to the user's back curve

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