Structure transformable into rigid beam

摘要

The transformable structure comprises two supple components which after assembly assumes the shape of a rigid beam. There are two link chains (1,2) whose links (3,4) are pivoted about their respective axes (7,8) and have opposing support points (10,11). The first support point (10) of a link row (n) of each chain mates with the second support point (11) of a link row (n-1) to fasten together at the time of rigidifying the element.Certain links of one chain have a row of teeth (13) which form with the teeth of neighbouring links along the length of the element a continuous set of teeth. In the assembled configuration it forms a rigid body beyond which projects the set of teeth allowing meshing with gearing on all the width of the element.