Pressure Comfort Design Elements for Backpacks

摘要

Backpack pressure comfort is an important comfort indicator for backpack. In recent years, there have appeared many functional design on backpack products such as burden reduction, pressure relief, and protection of the spine. This paper studies the effect of functional design elements by comparing two different backpacks with one functional backpack and one nonfunctional backpack. And it discusses the effects from three indexes including the maximum pressure on the shoulders, the balance of the pressure on the shoulders and the pressure dispersion. The results show that functional backpack is not better than non-functional backpack for these three indicators. In addition, an experiment was carried out to test whether the one-piece shoulder belt plays a substantial role in the pressure balance of shoulders. Through the test, we found that the effective link of the shoulder belt can significantly improve the ability of the shoulder balance. Therefore, this paper considers that the backpack is a whole system, a single design element may be conducive to improving the pressure comfort, but the synthesis of multiple design elements may not have the effect.