Chair back with function of fitting to human back through curve self-regulation

Abstract

The invention discloses a chair back with function of fitting to human back through curve self-regulation. The upper end of the chair back is provided with multiple vertical first framework chutes at intervals, the lower end of the chair back is provided with multiple vertical second framework chutes at intervals, a deformable spring piece connects each one of the first framework chutes and the second framework chute corresponding to the first framework chute, the upper end of the deformable spring piece slides in the first framework chute through a sliding column, the lower end of the deformable spring piece slides in the second framework chute through a sliding column, right sides of a second connection ring and a third connection ring are provided with pressure sensors, a first driving motor is bent backwards through the deformable spring pieces at the upper parts of a motor first-grade rotation rod and a motor second-grade rotation rod and a second driving motor is bent forwards through the deformable spring pieces at the lower parts of the motor first-grade rotation rod and the motor second-grade rotation rod. When a human back curve is changed at different inclined angles, according to a pressure value acquired through a pressure sensor, the chair back can automatically fit to the human back curve.

Description

technical field [0001] The invention relates to a seat back of a seat. Background technique [0002] Seats are an indispensable item in daily life. For people who often sit for a long time, the comfort of the chair back has always been a very important issue, but even a very comfortable office chair, if the back of the chair does not conform to the human body If the back is curved, there will be a concentrated point of pressure on the back, that is, the back will be in a state of single-point pressure for a long time, which will easily lead to various discomforts such as back pain and lumbar diseases when sitting for a long time. [0003] Except for massage chairs, the chair backs of the chairs currently on the market are basically fixed in shape. Even massage chairs only undergo regular shape changes in a small range to achieve the massage effect, and it does not make the chair back change from Starting from the angle that fits the curve of the back of the human body, a ra...

AI Technical Summary

Problems solved by technology

[0002] Seats are an indispensable item in daily life. For people who often sit for a long time, the comfort of the chair back has always been a very important issue, but even a very comfortable office chair, if the back of the chair does not conform to the human body If the back is curved, there will be a concentrated point of pressure on the back, that is, the back will be in a state of single-point pressure for a long time, which will easily lead to various discomforts such as back pain and lumbar diseases when sitting for a long time

[0003] Except for massage chairs, the chair backs of the chairs currently on the market are basically fixed in shape. Even massage chairs only undergo regular shape changes in a small range to achieve the massage effect, and it does not make the chair back change from Starting from the angle that fits the curve of the back of the human body, a range of curve changes is formed

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