Study Of Sofa Air-cushion Comfort

Today, the inflatable sofa bed which is colorful, crystal and singular form, the inflatable single or double sofas, inflatable small round table, small stool, which modeling chic, can be arbitrary inflated, deflated, fascinating. Inflatable furniture take away from the bulk of the traditional furniture, can be put anywhere, indoor or outdoor. It becomes small size after deflated, also can be conveniently collected and carried, saving space.This topic is designing the sofa air-cushion and air-back cushion. The topic uses ergonomics as the theoretical basis, the experimental pressure distribution as a primary means, doing the subjective and objective experiment to the air-cushion sofa, to test its comfort performance by the method of combining quantitative and qualitative analysis.Based on the analysis of experiment, we have following conclusions:(1) When the air-cushion is in the double-deck, and the vertical surface, the horizontal bottom, in the cross-arranged manner, it is the best comfort, but stability is not optimistic. In addition, less inflated surface, more inflated the bottom, the state makes the air-cushion surface soft, the bottom hard, more comfortable.(2) When the air-back cushion is in the double-deck, and the horizontal surface, the vertical bottom, in the cross-arranged manner, it is the best comfort, but stability is not optimistic. In addition, the filling of more, the state makes air-back cushion harder, more comfortable.Also, we do a comparative study between air-cushion and sponge-cushion. In the layered structure, both of them are strongly comfortable in the state of soft surface, the hard bottom. In the elastic, the air-cushion is superior to sponge-cushion. In stability, the air-cushion is not as good as the sponge cushion pad.On the basis of the theory in the above conclusions, we have optimized designed the products on the sofa air-cushion, and have made a design principles and design drawings. Of course, the air-cushion material, inflatable measurement and experiment objects still have limitations in the study. We have put forward more comprehensive improvements. The air-cushion will be studied on the specified direction for future research.