Dummy for testing pressure comfort of office chair

Abstract

The invention mainly relates to the field of pressure testing, and provides a dummy for testing the pressure comfort of an office chair. The head, the chest, the back, the left upper arm, the right upper arm, the left front arm, the right front arm, the left hand, the right hand, the buttocks, the left thigh, the right thigh, the left shank, the right shank, the left foot and the right foot are designed according to the human body size of the 50th percentage Chinese adult male, and the mass and centroid positions of all body sections are configured according to standard adult human body inertia parameters. Meanwhile, 22 pressure sensors are mounted on the sides, in contact with the office chair seat surface, of the buttocks, the left thigh and the right thigh; the pressure sensor is used for collecting pressure signals of the contact side of a dummy and an office chair seat. The comfort of the office chair is analyzed according to the pressure signal, the structure is designed according to Chinese standard human body data, and the pressure distribution condition of a real person sitting on the seat surface of the chair can be accurately simulated, so that the pressure comfort of the office chair is accurately evaluated, a large number of real persons are replaced for testing, and the testing time and labor cost are saved.

Description

technical field [0001] The invention relates to the technical field of pressure testing, in particular to a dummy used for pressure comfort testing of office chairs. Background technique [0002] With the advancement of science and technology and economy, more and more people sit in office chairs and spend nearly one-third of the time sitting in office every day. If the design of office chairs is unreasonable, it will damage the backs, The spine, muscles, and arms have adverse effects and even cause physical injury. Therefore, according to human body size and sitting habits, designing an ergonomic office chair will be beneficial to human health. [0003] Whether the design of the office chair conforms to the shape of the human body and whether it is comfortable to sit requires a large number of testers to use and evaluate, but it will take a lot of time and cost to use and evaluate through a large number of testers. The evaluation is subjective, which leads to poor reproduc...

AI Technical Summary

Problems solved by technology

However, because the simulated load cannot simulate the distribution of real body mass and the influence of hip bone and muscle conditions on the seat pressure of the chair, only a peak pressure can be obtained, but the pressure distribution of the seat cannot be obtained

However, the mass distribution of the whole body and the structure of the buttocks have a significant impact on the pressure distribution of the seat surface of the chair. The pressure distribution of the seat surface of the chair is a major factor affecting the comfort of the seat. Therefore, the method of testing the peak pressure of the chair seat surface by simulating loads has Limitations, leading to inaccurate office chair comfort test results

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