|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||135/4R ; 52/81 ; 52/109 ; 135/DIG ; 3|
|발명자 / 주소|
|인용정보||피인용 횟수 : 43 인용 특허 : 3|
Self-supporting structures and panels of diverse shapes are disclosed in which basic assemblies of crossed rod elements are employed to achieve the desired shape. Further, the crossing points of crossed rod elements in the structure involved may include limited sliding connections which effect transfer of collapsing force to other crossing points which are pivotally joined. An improved hub structure for pivotally joining ends of the rod elements at the outer and inner apical points is also disclosed.
A collapsible, self-supporting structure, comprising in combination: a network of column - like elements freely pivotally joined together to form the self-supporting structure, there being groups of said elements which intersect and are freely pivotally joined at their ends to define inner and outer apical points, said outer apical points lying on the surface of revolution and said inner apical points being paired each with a corresponding outer apical point and being spaced inwardly from their corresponding outer apical points along radial lines normal ...