PURPOSE: To obtain an lightweight expanding structure with excellent strength by sliding a slide hinge fitted at a vertical aggregate made longer than the other three vertical aggregates so as to raise a diagonal aggregate, and with this, raise upper and lower groups of lateral aggregates in succession to be mutually aggregated.
CONSTITUTION: The first group of lateral aggregates L11-L14 are connected by joints P11-P14, and the one ends of vertical aggregates V1-V4 are connected to the respective joints P11-P14 at the right angle to the plane formed by the lateral aggregates L11-L14. Among the vertical aggregates V1-V4, only the vertical aggregate V3 is formed longer than the other three, and joints P21-P24 are provided at the other ends of the three vertical aggregates V1, V2, V4 and at the intermediate part of the longer aggregate V3. The second group of four lateral aggregates L21-L24 are connected to these joints P21-P24. A slide hinge S is fitted right above the joint P23 of the longer vertical aggregate V3, one end of a diagonal aggregate D is pivotally fixed at the slide hinge S, and the other end is connected to the joint P11 at the lower part of the vertical aggregate V1.
TAKAMATSU SEIJI
ONODA JUNJIRO
JPS6225634A | 1987-02-03 |