公开(公告)号：US20210007503A1

公开(公告)日：2021-01-14

申请号：US16634452

申请日：2018-07-11

申请人： Bo NIE

发明人： Bo NIE

IPC分类号： A47C27/07 ,  A47C27/045

摘要： A foldable tension spring mattress, wherein a vertical pressure is converted into a tension by means of a wrapping blanket; the tension acts on the periphery of a spring net and is converted into a pulling force acting on coil springs and penetrating springs; and then the pulling force is uniformly dispersed to each of the coil springs, so that the local overstressing of the coil springs and the penetrating springs is avoided, thereby preventing the spring net and the penetrating springs from being arched and sunken. As a result, the mattress may keep good elasticity all the time, which further increases the comfort level of the spring mattress. The present solution may alleviate the plastic deformation of the coil springs to further increase the comfort level of the spring mattress and improve the elasticity and durability of the spring mattress.