Posture corrective chair

Abstract

The invention discloses a posture corrective chair, comprising a stand portion, a seat portion and a supporting portion; the stand portion is disposed above the seat portion, one end of the stand portion is fixed to the seat portion, the other end of the stand portion is extended above the seat portion, the stand portion comprises a stand housing and connecting bars, one end of every connecting bar is fixed to the seat portion, and the other end of every connecting bar is extended above the seat portion and connected with the stand housing and is provided with a connecting shaft; a shaft sleeve and a first tooth sleeve are fixed in the stand housing, a second tooth sleeve is disposed between the shaft sleeve and the first tooth sleeve, the second tooth sleeve is in toothed fit with the first tooth sleeve, and a compression spring is disposed between the shaft sleeve and the second tooth sleeve; the connecting shaft is disposed sequentially in inner holes of the shaft sleeve, the compression spring, the second tooth sleeve and the first tooth sleeve and is in clearance fit with the shaft sleeve and the first tooth sleeve; the second tooth sleeve is fixed to the connecting shaft. The posture corrective chair is advantageous in that the chair enables a user to keep in a correct spinal posture when seated.

Description

technical field [0001] The invention relates to a chair, in particular to a posture correcting / correcting chair for maintaining the user's correct sitting posture. Background technique [0002] Among office workers and students who stay at their desks for a long time, the incidence of back pain is increasing year by year. Lumbar spine pain, back pain, lumbar disc herniation, hip and shoulder muscle pain have become common diseases, and the culprit of this phenomenon is Poor sitting posture. How to solve the problem of sitting posture has always been a very challenging design topic. For a long time, domestic and foreign medical circles, seat designers and ergonomics researchers have been devoting themselves to the design and research of new seats. [0003] A common chair includes a seat part, a back part and a support part. When the user sits on the chair, the seat part is used to support the user's buttocks, and the back part is positioned at the rear upper part of the seat...

AI Technical Summary

Problems solved by technology

[0004] When the user leans on the backrest, most of the weight of the upper body is supported by the backrest. If the user wants to maintain a correct sitting posture, the user needs to move the buttocks very Close to the backrest and keep the back straight, but it is usually difficult to maintain this position for a long time, and the user's buttocks will slowly move towards the front of the seat, causing scoliosis

[0005]When the user leans against the table with the arms resting on the table, the back and neck bend toward the table, making it more difficult for the back to stay close to the backrest and straight The forward leaning posture will increase the weight of the spine, and users will involuntarily shrink their necks and backs, especially young children with poor self-control. They may even lie on the table to read and write, which seriously affects the normal development of the body

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