Child dummy

Abstract

The invention provides a child dummy, which comprises a head, shoulder joints, a trunk, thighs, shanks, big arms, forearms, hip joints, knee joints and simulation skin, the head is fixedly connected with the trunk, the trunk is connected with the big arms through the shoulder joints, the trunk is connected with the thighs through the hip joints, the thighs are connected with the shanks through theknee joints, and the big arms are connected with the forearms; the simulation skin is laid on the head, the trunk, the thighs, the shanks, the big arms and the forearms; the simulation skin comprisesan epidermal layer, a supporting layer and a connecting layer; and a first gravity center adjusting mechanism is arranged in the trunk. The child dummy conforms to the appearance characteristics, themass distribution characteristics and the joint movement characteristics of the three-year-old Chinese children at the present stage, and the real biomechanical characteristics of the three-year-oldChinese children can be well reflected; based on ergonomic test requirements, biomechanical evaluation during product safety evaluation of the three-year-old children can be realized, and particularly, three-dimensional motion trails, human-computer interaction acting force and the like of the three-year-old children during toppling or falling and other tests can be objectively and truly reproduced.

Description

technical field [0001] The invention belongs to the technical field of ergonomics experiment testing, and in particular relates to a child dummy, in particular to a child dummy used for ergonomics testing. Background technique [0002] Ergonomic testing experiments or research usually require a large number of experiments. For health and safety considerations, it is not appropriate to directly use real people for testing. The use of dummies for ergonomic testing can eliminate the influence of individual differences on experimental results, and can effectively solve problems such as the selection of experimental personnel, thereby shortening the experimental cycle, reducing experimental costs, high accuracy, and good repeatability. [0003] At present, due to the difficulty of data collection for young children, my country currently does not have a high-simulation physical structure model for the safety assessment of children's consumer products that conforms to the physical ...

AI Technical Summary

Problems solved by technology

When conducting safety testing and evaluation of children's consumer products, my country currently has no child dummies that meet the physiological characteristics of Chinese children, and different fields have different requirements for dummies. At present, there is no relevant ergonomics field that can truly reflect the appearance and appearance of Chinese three-year-old children. Ergonomic evaluation dummies of body quality, in the ergonomic evaluation of human-machine geometric fit, mechanical fit and use safety, in some tests plastic, textile and other child dummies are used, Even sandbags, hard human-shaped water tanks, etc., these dummies cannot reflect the physiological characteristics and human-computer interaction response of the real human body, so there is a big difference between the test results and the experimental results in real use scenarios. and quality control pose certain difficulties

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