Novel safety belt type shoulder strips of backpack

Abstract

The invention discloses a novel safety belt type shoulder strips of a backpack. The novel safety belt type shoulder strips of the backpack comprise normal shoulder strips, car safety belt material special woven strips and shoulder strip length controllers. The shoulder strips are characterized in that the normal shoulder strips can cover bearing parts of the shoulders. The controllers are installed at the bottoms of the shoulder strips and connected with the bottom of the backpack. The controllers can automatically control length of the special woven strips. In time of using the novel safety belt type shoulder strips of the backpack, if the backpack is in a normal state, the shoulder strips are tightly adhered to the back of a backpack body. When a person carries the backpack on the shoulder, the woven strips are slowly pulled out. When the person carrying the backpack stands still, the special woven strips can become tight according to the figure of the person under the action of woven strip controlling devices. When the person moves, shoulder strip bottom controlling devices can automatically control the length of the shoulder strips within a proper range and vibration frequency of the backpack is reduced. When the person inclines forwards due to a bearing habit, the controllers reel the woven strips back so that the person consciously straighten the body up and an adverse posture is resisted. The novel safety belt type shoulder strips of the backpack can effectively relieve a load on the shoulders when the backpack shakes and meanwhile rectify adverse postures of backpack carriers.

Description

technical field [0001] The invention relates to a design of shoulder straps of a novel safety belt-type backpack, in particular to the design of shoulder straps of backpacks used by children. Background technique [0002] "China is strong if young people are strong, and China is progressing if young people progress", Mr. Liang Qichao's shouting at the beginning of the 20th century is still deafening to our ears. The healthy growth level of teenagers and children directly affects the quality of China's talent training and is related to the future and rise and fall of the nation. Childhood is an important period for human growth and development. Because the weight of school bags brings inconvenience to walking, different forms of school bag loads will cause changes in children's trunk posture, which should be highly concerned by the whole society. [0003] At present, the weight of most students' backpacks exceeds 10%-15% of their own body weight (BW), and the average weight ...

AI Technical Summary

Problems solved by technology

In addition, children like to chase when carrying schoolbags, running and jumping forward, causing the backpack to vibrate up and down, and increasing the burden on the shoulders and back

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